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1439 vulnerabilities found for Junos OS by Juniper Networks
CVE-2026-57054 (GCVE-0-2026-57054)
Vulnerability from nvd – Published: 2026-07-09 21:14 – Updated: 2026-07-09 21:14
VLAI
EPSS
VEX
Title
Junos OS: MX Series: Web filtering doesn't block specifically formatted URLs
Summary
A Use of Incorrectly-Resolved Name or Reference vulnerability in the URL filtering plugin of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to bypass web filtering and access downstream resources that should be unreachable.
If an MX Series device is configured with web filtering, and an attacker sends a request with a specifically formatted URL, this request will get forwarded despite the system being configured to block it. In turn, an attacker can access downstream resources that are expected to be unreachable.
This issue affects Junos OS on MX Series:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S5,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R2-S1,
* 25.4 versions before 25.4R1-S2, 25.4R2.
Severity
CWE
- CWE-706 - Use of Incorrectly-Resolved Name or Reference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110093 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S5 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) Affected: 25.2 , < 25.2R2-S1 (custom) Affected: 25.4 , < 25.4R1-S2, 25.4R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57032 (GCVE-0-2026-57032)
Vulnerability from nvd – Published: 2026-07-09 21:14 – Updated: 2026-07-09 21:14
VLAI
EPSS
VEX
Title
Junos OS: EX Series: Subscribing to an unsupported telemetry sensor path causes fxpc process crash
Summary
An Improper Handling of Undefined Parameters vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on EX Series devices allows an authenticated attacker with low privileges to cause a Denial-of-Service (DoS).
If an attempt is made to subscribe to an unsupported telemetry sensor path on EX2300, EX3400, EX4000, EX4100 and EX4400 via gRPC, this causes the FPC to crash. This leads to a complete service outage until the module has automatically restarted.
The following log message can be seen when this issue happens:
agentd[<PID>]: AGENTD_RESOURCE_NOT_FOUND: No resource name found for <sensor>
This issue affects Junos OS on
EX2300, EX3400, EX4000, EX4100 and EX4400
devices:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S5,
* 24.4 versions before 24.4R2.
Severity
CWE
- CWE-236 - Improper Handling of Undefined Parameters
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110092 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S5 (custom) Affected: 24.4 , < 24.4R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57031 (GCVE-0-2026-57031)
Vulnerability from nvd – Published: 2026-07-09 21:13 – Updated: 2026-07-09 21:13
VLAI
EPSS
VEX
Title
Junos OS: MX Series: For subscribers configured on static interfaces, input filters are not in effect
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on MX Series allows adjacent subscribers to bypass configured firewall filters.
On MX Series devices with MPC10/11, LC4800/9600, and MX304 with subscribers configured on static interfaces, ingress firewall filters are not enforced, so that neither protocol level nor upstream bandwidth limitation are in effect.
This issue affects Junos OS on MX with MPC10/11, LC4800/9600/4802, and MX304:
* 23.2 versions from 23.2R2-S1 before 23.2R2-S7,
* 23.4 versions from 23.4R2 before 23.4R2-S7,
* 24.2 versions before 24.2R2-S3,
* 24.4 versions before 24.4R2-S2,
* 25.2 versions before 25.2R2.
Severity
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110091 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
23.2R2-S1 , < 23.2R2-S7
(custom)
Affected: 23.4R2 , < 23.4R2-S7 (custom) Affected: 24.2 , < 24.2R2-S3 (custom) Affected: 24.4 , < 24.4R2-S2 (custom) Affected: 25.2 , < 25.2R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57030 (GCVE-0-2026-57030)
Vulnerability from nvd – Published: 2026-07-09 21:13 – Updated: 2026-07-09 21:13
VLAI
EPSS
VEX
Title
Junos OS: SRX Series: Flow sessions are not getting cleared leading to a DoS
Summary
A Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
As part of the stateful traffic processing on SRX Series devices flows are being established, and removed when not needed anymore. During the removal process the timeout of a flow should be set to 3 seconds and consequentially the flow should be removed shortly after. Due to a race condition occurring when setting the timeout there is a chance (the exact conditions are outside the attackers control) that the timeout is instead set to a very high value of larger than 10,000 seconds:
user@host> show security flow session | match timeout
Session ID: 98784248524, Policy name: PROD-FLOW/4, HA State: Active, Timeout: 85250, Session State: Valid
This will lead to an accumulation of flows which can be observed by an ever-increasing value of invalidated sessions in the output of 'show security flow session summary':
user@host> show security flow session summary | match invalid
Invalidated sessions: 216931These sessions can't be cleared manually with the 'clear security flow session' command, which will either lead to forwarding to stop (and the system needs to be manually recovered with a reboot) or to a flowd core and automatic reboot.
This issue affects Junos OS on SRX Series:
* 24.2 versions before 24.2R2-S3,
* 24.4 versions before 24.4R2-S1, 24.4R2-S2,
* 25.2 versions before 25.2R1-S2, 25.2R2.
This issue does not affect releases earlier than 24.2R1;
Severity
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110090 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
24.2 , < 24.2R2-S3
(custom)
Affected: 24.4 , < 24.4R2-S1 (custom) Affected: 25.2 , < 25.2R1-S2 (custom) Unaffected: 0 , < 24.2R1 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57027 (GCVE-0-2026-57027)
Vulnerability from nvd – Published: 2026-07-09 21:08 – Updated: 2026-07-09 21:08
VLAI
EPSS
VEX
Title
Junos OS: EX4100 Series, EX4400: With sFlow configured in a VC scenario multicast traffic leads to an FPC crash
Summary
A Missing Release of Memory after Effective Lifetime vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on specific EX Series devices allows an unauthenticated adjacent attacker to cause a Denial-of-Service (DoS).When sFlow is configured in a Virtual Chassis (VC) scenario with EX4100 Series or EX4400 Series devices, multicast traffic which is received on one VC member and sent out on another member leads to a memory leak and ultimately an FPC crash and restart.
The leak can be monitored by watching the continuous increase of the buffer values in the output of:
user@host> show chassis fpc
This issue affects Junos OS on EX4100 Series and EX4400:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S7,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2.
Severity
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110087 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S7 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2 (custom) |
Date Public
2026-07-08 16:00
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"value": "A Missing Release of Memory after Effective Lifetime vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on specific EX Series devices allows an unauthenticated adjacent attacker to cause a Denial-of-Service (DoS).When sFlow is configured in a Virtual Chassis (VC) scenario with EX4100 Series or EX4400 Series devices, multicast traffic which is received on one VC member and sent out on another member leads to a memory leak and ultimately an FPC crash and restart.\n\nThe leak can be monitored by watching the continuous increase of the buffer values in the output of:\n\nuser@host\u003e show chassis fpc \nThis issue affects Junos OS on\u00a0EX4100 Series and EX4400:\n\n\n * all versions before 23.2R2-S7,\n * 23.4 versions before 23.4R2-S7,\n * 24.2 versions before 24.2R2-S4,\n * 24.4 versions before 24.4R2."
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CVE-2026-57026 (GCVE-0-2026-57026)
Vulnerability from nvd – Published: 2026-07-09 21:07 – Updated: 2026-07-09 21:07
VLAI
EPSS
VEX
Title
Junos OS: MX Series with SPC3, SRX Series: Processing of a specifically malformed SIP invite causes a flowd crash
Summary
An Improper Validation of Syntactic Correctness of Input vulnerability in the SIP plugin of Juniper Networks Junos OS on MX Series with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).If the SIP ALG is enabled on an affected device, the processing of a malformed SIP invite packet will cause a flow processing daemon (flowd) crash and restart. This leads to a complete service outage until the system has automatically recovered.
This issue affects Junos OS on MX Series with SPC3 and SRX Series:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S5,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R2,
* 25.4 versions before 25.4R1-S2.
Severity
CWE
- CWE-1286 - Improper Validation of Syntactic Correctness of Input
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110086 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S5 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) Affected: 25.2 , < 25.2R2 (custom) Affected: 25.4 , < 25.4R1-S2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57025 (GCVE-0-2026-57025)
Vulnerability from nvd – Published: 2026-07-09 21:07 – Updated: 2026-07-09 21:07
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: EX Series, QFX Series, MX Series: A specific 'show l2-learning' command causes l2ald crash
Summary
A Return of Pointer Value Outside of Expected Range vulnerability in the fileio library of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privilged attacker to cause a Denial-of-Service (DoS).
On EX Series, QFX Series and MX Series a low-privileged attacker issuing a specific 'show l2-learning' command will cause an l2ald crash which will lead to a temporary service impact for all layer 2 services until the process has automatically restarted.
This issue affects EX Series, QFX Series, MX Series:
Junos OS:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S7,
* 24.2 versions before 24.2R2,
* 24.4 versions before 24.4R1-S2.
Junos OS Evolved:
* all versions before 23.2R2-S7-EVO,
* 23.4 versions before 23.4R2-S8-EVO,
* 24.2 versions before 24.2R2-EVO,
* 24.4 versions before 24.4R1-S3-EVO.
Severity
CWE
- CWE-466 - Return of Pointer Value Outside of Expected Range
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110085 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S7 (custom) Affected: 24.2 , < 24.2R2 (custom) Affected: 24.4 , < 24.4R1-S2 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 23.2R2-S7-EVO
(custom)
Affected: 23.4 , < 23.4R2-S8-EVO (custom) Affected: 24.2 , < 24.2R2-EVO (custom) Affected: 24.4 , < 24.4R1-S3-EVO (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57024 (GCVE-0-2026-57024)
Vulnerability from nvd – Published: 2026-07-09 21:06 – Updated: 2026-07-09 21:06
VLAI
EPSS
VEX
Title
Junos OS: MX with SPC3, SRX Series: Repeated VPN negotiation failures will eventually cause iked to crash continuously
Summary
A Use of Multiple Resources with Duplicate Identifier vulnerability in the IKE daemon (iked) of Juniper Networks Junos OS on MX with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
On an MX with SPC3 and SRX devices configured for VPN service, when a large number of VPN negotiations fail a peer index rollover will eventually occur. As a result, new peers are assigned index values that are already in use and the iked process starts to crash repeatedly. This results in failure to establish new VPN connections and rekeying existing ones. To restore service the system must be rebooted.
Please note that the index value can't be monitored, so customers should monitor tunnel up and down events and if a lot of events occur over an extended period of time it becomes likely that this issue occurs.
To be exposed to this issue the system needs to run iked (vs. kmd which is not affected), which can be verified with:
user@host> show system processes extensive | match "KMD|IKED"
This issue affects Junos OS on MX with SPC3, SRX Series:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S6,
* 24.2 versions before 24.2R2-S3,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R1-S1.
Severity
CWE
- CWE-694 - Use of Multiple Resources with Duplicate Identifier
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110084 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S6 (custom) Affected: 24.2 , < 24.2R2-S3 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) Affected: 25.2 , < 25.2R1-S1 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57023 (GCVE-0-2026-57023)
Vulnerability from nvd – Published: 2026-07-09 21:06 – Updated: 2026-07-09 21:06
VLAI
EPSS
VEX
Title
Junos OS: MX with SPC3, SRX Series: A specifically malformed TCP packet causes a flowd crash
Summary
An Improper Validation of Specified Quantity in Input vulnerability in the TCP proxy plugin of Juniper Networks Junos OS on MX Series with SPC3, and SRX Series allows an unauthenticated, network-based attacker to cause a complete Denial of Service (DoS).
When TCP proxy is engaged in a flow session, to support ALGs, Advanced Anti-Malware, ICAP or UTM, a TCP packet with specifically malformed TCP header will cause flow processing daemon (flowd) to crash and restart. This causes a complete service outage until the system has automatically recovered.
This issue affects Junos OS on MX with SPC3, and SRX Series:
* 23.4 versions before 23.4R2-S7,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S3,
* 25.2 versions before 25.2R2.
This issue does not affect releases before 23.4R1.
Severity
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110083 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
23.4 , < 23.4R2-S7
(custom)
Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2-S3 (custom) Affected: 25.2 , < 25.2R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57022 (GCVE-0-2026-57022)
Vulnerability from nvd – Published: 2026-07-09 21:06 – Updated: 2026-07-09 21:06
VLAI
EPSS
VEX
Title
Junos OS: MX Series with SPC3, SRX Series: Specific packet in response to a TCP connection establishment by the affected device can crash the PFE
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
When an affected device initiates a TCP connection to an attacker-controlled system that responds with a specific packet, this causes a PFE crash and restart, which affects all services until the system has automatically recovered.
This issue can happen among others in the following scenarios: ALG, SSL proxy, UTM, RTLOG, AppQoE probing, AAMW, ICAP, URL filtering.
This issue affects Junos OS on MX Series with SPC3, SRX5k Series with SPC3, SRX1600 Series, SRX2300 Series, SRX4000 Series, and vSRX Series:
* all versions before 23.2R2-S4,
* 23.4 versions before 23.4R2-S5,
* 24.2 versions before 24.2R2.
Severity
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110082 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S4
(custom)
Affected: 23.4 , < 23.4R2-S5 (custom) Affected: 24.2 , < 24.2R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57021 (GCVE-0-2026-57021)
Vulnerability from nvd – Published: 2026-07-09 21:05 – Updated: 2026-07-09 21:05
VLAI
EPSS
VEX
Title
Junos OS: SRX Series: If VPN compliance-check is configured an attacker can cause http-gk process crash
Summary
An Out-of-bounds Write vulnerability in the http-gatekeeper (http-gk) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
If an SRX Series device is configured for remote-access VPN with pre-logon compliance check, a network-based attacker sending specifically formatted requests can trigger an out of bounds write leading to an http-gk process crash. This crash leads to unavailability of all services depending on the [ system services web-management ] configuration (like J-Web, remote access VPN and firewall authentication) until the process automatically restarts.
This issue affects Junos OS on SRX Series:
* 23.2 versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R2,
* 25.4 versions before 25.4R1-S1, 25.4R2.
Severity
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110081 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
23.2 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) Affected: 25.2 , < 25.2R2 (custom) Affected: 25.4 , < 25.4R1-S1, 25.4R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57020 (GCVE-0-2026-57020)
Vulnerability from nvd – Published: 2026-07-09 21:05 – Updated: 2026-07-09 21:05
VLAI
EPSS
VEX
Title
Junos OS: QFX10000 Series: IPv6 multicast traffic received on non-IRB interfaces causes a multicast flood
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on QFX10000 Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).
On all QFX10000 platforms in an EVPN-VxLAN scenario, if an attacker sends IPv6 multicast traffic and these packets reach the non-IRB interface of a spine switch it floods the packet to other spines and all Ethernet Segment Identifier (ESI) leaf switches. This flooding causes the packet to be forwarded in a endless loop, which can lead to saturation of the involved links and in turn impact to legitimate traffic.
This issue affects Junos OS on QFX10000 Series:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S4.
This issue does not affect Junos version after 24.4 as the QFX10000 Series devices are not supported on newer versions anymore.
Severity
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110080 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57019 (GCVE-0-2026-57019)
Vulnerability from nvd – Published: 2026-07-09 21:04 – Updated: 2026-07-09 21:04
VLAI
EPSS
VEX
Title
Junos OS: MX Series: Specific traffic causes an FPC to reset
Summary
An Improper Validation of Specified Quantity in Input vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).
When a specific packet is received from device in the same broadcast domain, an affected system calculates the packet size incorrectly. This causes further packet processing to fail, which triggers an FPC major error, resulting in a FPC reset impacting traffic until the FPC has automatically recovered.
Affected scenarios are: MAP-T, or non-IP traffic encapsulated in IP (e.g. MPLS over GRE).
When this issue happens the following logs can be observed:
fpc<#> CMError: /fpc/0/pfe/0/cm/0/MQSS(0)/0/MQSS_CMERROR_LI_INT_REG_UNROLL_TAIL_LENGTH_OVF (0x2205eb), scope: pfe, category: functional, severity: major, module: MQSS(0), type: LI: Unroll TAIL length overflow, oc_category: default
fpc<#> Performing action reset-fru for error /fpc/0/pfe/0/cm/0/MQSS(0)/0/MQSS_CMERROR_LI_INT_REG_UNROLL_TAIL_LENGTH_OVF (0x2205eb) in module: MQSS(0) with scope: pfe category: functional level: major, oc_category: default
This issue affects Junos OS on MX Series:
* all versions before 23.2R2-S6,
* 23.4 versions before 23.4R2-S7,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R2.
Severity
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110079 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S6
(custom)
Affected: 23.4 , < 23.4R2-S7 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) Affected: 25.2 , < 25.2R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-33802 (GCVE-0-2026-33802)
Vulnerability from nvd – Published: 2026-07-09 21:03 – Updated: 2026-07-09 21:03
VLAI
EPSS
VEX
Title
Junos OS: EX Series: Unauthorized users can execute service-impacting CLI command
Summary
A Missing Authorization vulnerability in the CLI of Juniper Networks Junos OS on EX Series allows a local, authenticated attacker to cause a Denial-of-Service (DoS).
On EX2300, EX4000, EX4100, EX4300-MP (Multigigabit) and EX4400 switches, an authenticated, local attacker with no specific permissions or class can execute a specific, privileged CLI 'request' command which will cause complete traffic impact until the system automatically recovers.
This issue affects Junos OS on EX2300, EX4000, EX4100, EX4300-MP (Multigigabit) and EX4400:
* 23.2R2 versions before 23.2R2-S6,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S3,
* 25.2 versions before 25.2R2,
* 25.4 versions before 25.4R1-S1.
Severity
CWE
- CWE-862 - Missing Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110077 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
23.2R2 , < 23.2R2-S6
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2-S3 (custom) Affected: 25.2 , < 25.2R2 (custom) Affected: 25.4 , < 25.4R1-S1 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-33801 (GCVE-0-2026-33801)
Vulnerability from nvd – Published: 2026-07-09 21:03 – Updated: 2026-07-09 21:03
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: When a specifically malformed BGP route update is received RPD crashes
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker sending a specific BGP update over an established BGP session to cause a Denial-of-Service (DoS).
Upon receipt of a specifically malformed non-inet/inet6 unicast BGP update, an RPD crash and restart is triggered, which will cause a complete service outage until routing has reconverged. The rpd crash occurs before the update can be readvertised, so there is no downstream propagation.
This issue affects:
* Junos OS versions 25.2 before 25.2R2;
* Junos OS Evolved versions 25.2 before 25.2R2-EVO.
This issue doesn't affect Junos OS versions before 25.2R1 nor Junos OS Evolved versions before 25.2R1-EVO.
Severity
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110076 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
25.2 , < 25.2R2
(custom)
|
|
| Juniper Networks | Junos OS Evolved |
Affected:
25.2 , < 25.2R2-EVO
(custom)
|
Date Public
2026-07-08 16:00
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CVE-2026-33800 (GCVE-0-2026-33800)
Vulnerability from nvd – Published: 2026-07-09 21:03 – Updated: 2026-07-09 21:03
VLAI
EPSS
VEX
Title
Junos OS: MX Series: In a VC scenario a high rate of micro-BFD session flaps will cause an FPC crash
Summary
An Unchecked Input for Loop Condition vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on MX Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).Micro-BFD session flaps generate respective up/down events which are queued by PFEMAN for processing. Especially in a Virtual-Chassis (VC) scenario with locality‑bias configured, processing takes a significant amount of time for each event. If these sessions keep flapping, new events are constantly added, and in turn PFEMAN never completes processing these events. This results in the PFEMAN watchdog timer expiring, which causes the FPC to crash and restart, representing a complete service outage.
This issue only affects MX series FPCs up to and including MPC9. It does not affect MPC10/11, LC4800/9600 and MX304.
This issue affects Junos OS on MX Series:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S3,
* 25.2 versions before 25.2R2.
Severity
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110075 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2-S3 (custom) Affected: 25.2 , < 25.2R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-33799 (GCVE-0-2026-33799)
Vulnerability from nvd – Published: 2026-07-09 21:02 – Updated: 2026-07-09 21:02
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: Receipt of a specific SNMPv3 request results in memory leak and eventual snmpd crash
Summary
An Out-of-bounds Write vulnerability in the SNMP daemon (snmpd) of Juniper Networks Junos OS and Junos OS Evolved allows an authenticated network-based attacker sending specific valid SNMPv3 queries to trigger a memory leak. Over time, continuous receipt of these queries will result in snmpd process memory exhaustion, resulting in a process crash and restart, impacting the ability to monitor the system via SNMP.
Memory usage can be monitored using the following command:
user@device> show system processes extensive | match snmpd
This issue affects:
Junos OS:
* all versions before 21.2R3-S8;
* from 21.4 before 21.4R3-S7;
* from 22.1 before 22.1R3-S6;
* from 22.2 before 22.2R3-S4;
* from 22.3 before 22.3R3-S3;
* from 22.4 before 22.4R3-S2;
* from 23.2 before 23.2R2;
* from 23.4 before 23.4R2.
Junos OS Evolved:
* all versions before 21.2R3-S8-EVO;
* from 21.4 before 21.4R3-S7-EVO;
* all versions of 22.1-EVO,
* from 22.2 before 22.2R3-S4-EVO;
* from 22.3 before 22.3R3-S3-EVO;
* all versions of 22.4-EVO,
* from 23.2 before 23.2R2-EVO;
* from 23.4 before 23.4R2-EVO.
Severity
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110074 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 21.2R3-S8
(custom)
Affected: 21.4 , < 21.4R3-S7 (custom) Affected: 22.1 , < 22.1R3-S6 (custom) Affected: 22.2 , < 22.2R3-S4 (custom) Affected: 22.3 , < 22.3R3-S3 (custom) Affected: 22.4 , < 22.4R3-S2 (custom) Affected: 23.2 , < 23.2R2 (custom) Affected: 23.4 , < 23.4R2 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 21.2R3-S8-EVO
(custom)
Affected: 21.4 , < 21.4R3-S7-EVO (custom) Affected: 22.1 , < 22.1* (custom) Affected: 22.2 , < 22.2R3-S4-EVO (custom) Affected: 22.3 , < 22.3R3-S3-EVO (custom) Affected: 22.4 , < 22.4* (custom) Affected: 23.2 , < 23.2R2-EVO (custom) Affected: 23.4 , < 23.4R2-EVO (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-21901 (GCVE-0-2026-21901)
Vulnerability from nvd – Published: 2026-07-09 21:01 – Updated: 2026-07-09 21:01
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: Configuration of a specific SSH option results in mgd crash
Summary
A NULL Pointer Dereference vulnerability in the management daemon (mgd) of Juniper Networks Junos OS and Junos OS Evolved allows a local, high-privileged attacker setting or deactivating a specific SSH configuration parameter to create a Denial of Service (DoS).
A local high-privileged user configuring or deactivating a specific 'system services ssh' configuration parameter can exploit a null pointer dereference in one of the functions used by SSH. The function attempts to dereference a null pointer when accessing certain configuration data, resulting in an mgd process crash and restart. Continued execution of these configuration commands will create a sustained Denial of Service (DoS) condition.
This issue affects:
Junos OS:
* from 22.3 before 22.3R3-S5;
* from 22.4 before 22.4R3-S10;
* from 23.2 before 23.2R2-S7;
* from 23.4 before 23.4R2-S8.
This issue does not affect Junos OS before 22.3R1.
Junos OS Evolved:
* from 22.3R1-EVO before 23.2R2-S7-EVO;
* from 23.4 before 23.4R2-S8-EVO.
This issue does not affect Junos OS Evolved before 22.3R1-EVO.
Severity
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/orangecertcc/security-research… | third-party-advisory |
| https://supportportal.juniper.net/JSA110072 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
22.3 , < 22.3R3-S5
(custom)
Affected: 22.4 , < 22.4R3-S10 (custom) Affected: 23.2 , < 23.2R2-S7 (custom) Affected: 23.4 , < 23.4R2-S8 (custom) Unaffected: 0 , < 22.3R1 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
23.2 , < 23.2R2-S7-EVO
(custom)
Affected: 23.4 , < 23.4R2-S8-EVO (custom) Unaffected: 0 , < 22.3R1-EVO (custom) |
Date Public
2026-07-08 16:00
Credits
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CVE-2026-57054 (GCVE-0-2026-57054)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:14 – Updated: 2026-07-09 21:14
VLAI
EPSS
VEX
Title
Junos OS: MX Series: Web filtering doesn't block specifically formatted URLs
Summary
A Use of Incorrectly-Resolved Name or Reference vulnerability in the URL filtering plugin of Juniper Networks Junos OS on MX Series allows an unauthenticated, network-based attacker to bypass web filtering and access downstream resources that should be unreachable.
If an MX Series device is configured with web filtering, and an attacker sends a request with a specifically formatted URL, this request will get forwarded despite the system being configured to block it. In turn, an attacker can access downstream resources that are expected to be unreachable.
This issue affects Junos OS on MX Series:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S5,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R2-S1,
* 25.4 versions before 25.4R1-S2, 25.4R2.
Severity
CWE
- CWE-706 - Use of Incorrectly-Resolved Name or Reference
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110093 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S5 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) Affected: 25.2 , < 25.2R2-S1 (custom) Affected: 25.4 , < 25.4R1-S2, 25.4R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57032 (GCVE-0-2026-57032)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:14 – Updated: 2026-07-09 21:14
VLAI
EPSS
VEX
Title
Junos OS: EX Series: Subscribing to an unsupported telemetry sensor path causes fxpc process crash
Summary
An Improper Handling of Undefined Parameters vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on EX Series devices allows an authenticated attacker with low privileges to cause a Denial-of-Service (DoS).
If an attempt is made to subscribe to an unsupported telemetry sensor path on EX2300, EX3400, EX4000, EX4100 and EX4400 via gRPC, this causes the FPC to crash. This leads to a complete service outage until the module has automatically restarted.
The following log message can be seen when this issue happens:
agentd[<PID>]: AGENTD_RESOURCE_NOT_FOUND: No resource name found for <sensor>
This issue affects Junos OS on
EX2300, EX3400, EX4000, EX4100 and EX4400
devices:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S5,
* 24.4 versions before 24.4R2.
Severity
CWE
- CWE-236 - Improper Handling of Undefined Parameters
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110092 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S5 (custom) Affected: 24.4 , < 24.4R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57031 (GCVE-0-2026-57031)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:13 – Updated: 2026-07-09 21:13
VLAI
EPSS
VEX
Title
Junos OS: MX Series: For subscribers configured on static interfaces, input filters are not in effect
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on MX Series allows adjacent subscribers to bypass configured firewall filters.
On MX Series devices with MPC10/11, LC4800/9600, and MX304 with subscribers configured on static interfaces, ingress firewall filters are not enforced, so that neither protocol level nor upstream bandwidth limitation are in effect.
This issue affects Junos OS on MX with MPC10/11, LC4800/9600/4802, and MX304:
* 23.2 versions from 23.2R2-S1 before 23.2R2-S7,
* 23.4 versions from 23.4R2 before 23.4R2-S7,
* 24.2 versions before 24.2R2-S3,
* 24.4 versions before 24.4R2-S2,
* 25.2 versions before 25.2R2.
Severity
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110091 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
23.2R2-S1 , < 23.2R2-S7
(custom)
Affected: 23.4R2 , < 23.4R2-S7 (custom) Affected: 24.2 , < 24.2R2-S3 (custom) Affected: 24.4 , < 24.4R2-S2 (custom) Affected: 25.2 , < 25.2R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57030 (GCVE-0-2026-57030)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:13 – Updated: 2026-07-09 21:13
VLAI
EPSS
VEX
Title
Junos OS: SRX Series: Flow sessions are not getting cleared leading to a DoS
Summary
A Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') vulnerability in the packet forwarding engine (PFE) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
As part of the stateful traffic processing on SRX Series devices flows are being established, and removed when not needed anymore. During the removal process the timeout of a flow should be set to 3 seconds and consequentially the flow should be removed shortly after. Due to a race condition occurring when setting the timeout there is a chance (the exact conditions are outside the attackers control) that the timeout is instead set to a very high value of larger than 10,000 seconds:
user@host> show security flow session | match timeout
Session ID: 98784248524, Policy name: PROD-FLOW/4, HA State: Active, Timeout: 85250, Session State: Valid
This will lead to an accumulation of flows which can be observed by an ever-increasing value of invalidated sessions in the output of 'show security flow session summary':
user@host> show security flow session summary | match invalid
Invalidated sessions: 216931These sessions can't be cleared manually with the 'clear security flow session' command, which will either lead to forwarding to stop (and the system needs to be manually recovered with a reboot) or to a flowd core and automatic reboot.
This issue affects Junos OS on SRX Series:
* 24.2 versions before 24.2R2-S3,
* 24.4 versions before 24.4R2-S1, 24.4R2-S2,
* 25.2 versions before 25.2R1-S2, 25.2R2.
This issue does not affect releases earlier than 24.2R1;
Severity
CWE
- CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110090 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
24.2 , < 24.2R2-S3
(custom)
Affected: 24.4 , < 24.4R2-S1 (custom) Affected: 25.2 , < 25.2R1-S2 (custom) Unaffected: 0 , < 24.2R1 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57027 (GCVE-0-2026-57027)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:08 – Updated: 2026-07-09 21:08
VLAI
EPSS
VEX
Title
Junos OS: EX4100 Series, EX4400: With sFlow configured in a VC scenario multicast traffic leads to an FPC crash
Summary
A Missing Release of Memory after Effective Lifetime vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on specific EX Series devices allows an unauthenticated adjacent attacker to cause a Denial-of-Service (DoS).When sFlow is configured in a Virtual Chassis (VC) scenario with EX4100 Series or EX4400 Series devices, multicast traffic which is received on one VC member and sent out on another member leads to a memory leak and ultimately an FPC crash and restart.
The leak can be monitored by watching the continuous increase of the buffer values in the output of:
user@host> show chassis fpc
This issue affects Junos OS on EX4100 Series and EX4400:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S7,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2.
Severity
CWE
- CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110087 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S7 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57026 (GCVE-0-2026-57026)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:07 – Updated: 2026-07-09 21:07
VLAI
EPSS
VEX
Title
Junos OS: MX Series with SPC3, SRX Series: Processing of a specifically malformed SIP invite causes a flowd crash
Summary
An Improper Validation of Syntactic Correctness of Input vulnerability in the SIP plugin of Juniper Networks Junos OS on MX Series with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).If the SIP ALG is enabled on an affected device, the processing of a malformed SIP invite packet will cause a flow processing daemon (flowd) crash and restart. This leads to a complete service outage until the system has automatically recovered.
This issue affects Junos OS on MX Series with SPC3 and SRX Series:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S5,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R2,
* 25.4 versions before 25.4R1-S2.
Severity
CWE
- CWE-1286 - Improper Validation of Syntactic Correctness of Input
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110086 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S5 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) Affected: 25.2 , < 25.2R2 (custom) Affected: 25.4 , < 25.4R1-S2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57025 (GCVE-0-2026-57025)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:07 – Updated: 2026-07-09 21:07
VLAI
EPSS
VEX
Title
Junos OS and Junos OS Evolved: EX Series, QFX Series, MX Series: A specific 'show l2-learning' command causes l2ald crash
Summary
A Return of Pointer Value Outside of Expected Range vulnerability in the fileio library of Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privilged attacker to cause a Denial-of-Service (DoS).
On EX Series, QFX Series and MX Series a low-privileged attacker issuing a specific 'show l2-learning' command will cause an l2ald crash which will lead to a temporary service impact for all layer 2 services until the process has automatically restarted.
This issue affects EX Series, QFX Series, MX Series:
Junos OS:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S7,
* 24.2 versions before 24.2R2,
* 24.4 versions before 24.4R1-S2.
Junos OS Evolved:
* all versions before 23.2R2-S7-EVO,
* 23.4 versions before 23.4R2-S8-EVO,
* 24.2 versions before 24.2R2-EVO,
* 24.4 versions before 24.4R1-S3-EVO.
Severity
CWE
- CWE-466 - Return of Pointer Value Outside of Expected Range
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110085 | vendor-advisory |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S7 (custom) Affected: 24.2 , < 24.2R2 (custom) Affected: 24.4 , < 24.4R1-S2 (custom) |
|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 23.2R2-S7-EVO
(custom)
Affected: 23.4 , < 23.4R2-S8-EVO (custom) Affected: 24.2 , < 24.2R2-EVO (custom) Affected: 24.4 , < 24.4R1-S3-EVO (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57024 (GCVE-0-2026-57024)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:06 – Updated: 2026-07-09 21:06
VLAI
EPSS
VEX
Title
Junos OS: MX with SPC3, SRX Series: Repeated VPN negotiation failures will eventually cause iked to crash continuously
Summary
A Use of Multiple Resources with Duplicate Identifier vulnerability in the IKE daemon (iked) of Juniper Networks Junos OS on MX with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
On an MX with SPC3 and SRX devices configured for VPN service, when a large number of VPN negotiations fail a peer index rollover will eventually occur. As a result, new peers are assigned index values that are already in use and the iked process starts to crash repeatedly. This results in failure to establish new VPN connections and rekeying existing ones. To restore service the system must be rebooted.
Please note that the index value can't be monitored, so customers should monitor tunnel up and down events and if a lot of events occur over an extended period of time it becomes likely that this issue occurs.
To be exposed to this issue the system needs to run iked (vs. kmd which is not affected), which can be verified with:
user@host> show system processes extensive | match "KMD|IKED"
This issue affects Junos OS on MX with SPC3, SRX Series:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S6,
* 24.2 versions before 24.2R2-S3,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R1-S1.
Severity
CWE
- CWE-694 - Use of Multiple Resources with Duplicate Identifier
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110084 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S6 (custom) Affected: 24.2 , < 24.2R2-S3 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) Affected: 25.2 , < 25.2R1-S1 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57023 (GCVE-0-2026-57023)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:06 – Updated: 2026-07-09 21:06
VLAI
EPSS
VEX
Title
Junos OS: MX with SPC3, SRX Series: A specifically malformed TCP packet causes a flowd crash
Summary
An Improper Validation of Specified Quantity in Input vulnerability in the TCP proxy plugin of Juniper Networks Junos OS on MX Series with SPC3, and SRX Series allows an unauthenticated, network-based attacker to cause a complete Denial of Service (DoS).
When TCP proxy is engaged in a flow session, to support ALGs, Advanced Anti-Malware, ICAP or UTM, a TCP packet with specifically malformed TCP header will cause flow processing daemon (flowd) to crash and restart. This causes a complete service outage until the system has automatically recovered.
This issue affects Junos OS on MX with SPC3, and SRX Series:
* 23.4 versions before 23.4R2-S7,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S3,
* 25.2 versions before 25.2R2.
This issue does not affect releases before 23.4R1.
Severity
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110083 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
23.4 , < 23.4R2-S7
(custom)
Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2-S3 (custom) Affected: 25.2 , < 25.2R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57022 (GCVE-0-2026-57022)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:06 – Updated: 2026-07-09 21:06
VLAI
EPSS
VEX
Title
Junos OS: MX Series with SPC3, SRX Series: Specific packet in response to a TCP connection establishment by the affected device can crash the PFE
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX with SPC3 and SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
When an affected device initiates a TCP connection to an attacker-controlled system that responds with a specific packet, this causes a PFE crash and restart, which affects all services until the system has automatically recovered.
This issue can happen among others in the following scenarios: ALG, SSL proxy, UTM, RTLOG, AppQoE probing, AAMW, ICAP, URL filtering.
This issue affects Junos OS on MX Series with SPC3, SRX5k Series with SPC3, SRX1600 Series, SRX2300 Series, SRX4000 Series, and vSRX Series:
* all versions before 23.2R2-S4,
* 23.4 versions before 23.4R2-S5,
* 24.2 versions before 24.2R2.
Severity
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110082 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S4
(custom)
Affected: 23.4 , < 23.4R2-S5 (custom) Affected: 24.2 , < 24.2R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57021 (GCVE-0-2026-57021)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:05 – Updated: 2026-07-09 21:05
VLAI
EPSS
VEX
Title
Junos OS: SRX Series: If VPN compliance-check is configured an attacker can cause http-gk process crash
Summary
An Out-of-bounds Write vulnerability in the http-gatekeeper (http-gk) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).
If an SRX Series device is configured for remote-access VPN with pre-logon compliance check, a network-based attacker sending specifically formatted requests can trigger an out of bounds write leading to an http-gk process crash. This crash leads to unavailability of all services depending on the [ system services web-management ] configuration (like J-Web, remote access VPN and firewall authentication) until the process automatically restarts.
This issue affects Junos OS on SRX Series:
* 23.2 versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S4,
* 25.2 versions before 25.2R2,
* 25.4 versions before 25.4R1-S1, 25.4R2.
Severity
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110081 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
23.2 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) Affected: 25.2 , < 25.2R2 (custom) Affected: 25.4 , < 25.4R1-S1, 25.4R2 (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-57020 (GCVE-0-2026-57020)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:05 – Updated: 2026-07-09 21:05
VLAI
EPSS
VEX
Title
Junos OS: QFX10000 Series: IPv6 multicast traffic received on non-IRB interfaces causes a multicast flood
Summary
An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on QFX10000 Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).
On all QFX10000 platforms in an EVPN-VxLAN scenario, if an attacker sends IPv6 multicast traffic and these packets reach the non-IRB interface of a spine switch it floods the packet to other spines and all Ethernet Segment Identifier (ESI) leaf switches. This flooding causes the packet to be forwarded in a endless loop, which can lead to saturation of the involved links and in turn impact to legitimate traffic.
This issue affects Junos OS on QFX10000 Series:
* all versions before 23.2R2-S7,
* 23.4 versions before 23.4R2-S8,
* 24.2 versions before 24.2R2-S4,
* 24.4 versions before 24.4R2-S4.
This issue does not affect Junos version after 24.4 as the QFX10000 Series devices are not supported on newer versions anymore.
Severity
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110080 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 23.2R2-S7
(custom)
Affected: 23.4 , < 23.4R2-S8 (custom) Affected: 24.2 , < 24.2R2-S4 (custom) Affected: 24.4 , < 24.4R2-S4 (custom) |
Date Public
2026-07-08 16:00
{
"containers": {
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"affected": [
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"defaultStatus": "unaffected",
"platforms": [
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"status": "affected",
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"datePublic": "2026-07-08T16:00:00.000Z",
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"value": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on QFX10000 Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\u003cp\u003e\n\nOn all QFX10000 platforms in an EVPN-VxLAN scenario, if an attacker sends IPv6 multicast traffic and these packets reach the non-IRB interface of a spine switch it floods the packet to other spines and all Ethernet Segment Identifier (ESI)\u0026nbsp;leaf switches. This flooding causes the packet to be forwarded in a endless loop, which can lead to saturation of the involved links and in turn impact to legitimate traffic.\u003cbr\u003e\u003c/p\u003e\u003cp\u003e\u003cbr\u003eThis issue affects Junos OS on QFX10000 Series:\u003cbr\u003e\u003c/p\u003e\u003cul\u003e\u003cli\u003eall versions before 23.2R2-S7,\u003c/li\u003e\u003cli\u003e23.4 versions before 23.4R2-S8,\u003c/li\u003e\u003cli\u003e24.2 versions before 24.2R2-S4,\u003c/li\u003e\u003cli\u003e24.4 versions before 24.4R2-S4.\u003c/li\u003e\u003c/ul\u003e\u003cbr\u003eThis issue does not affect Junos version after 24.4 as the QFX10000 Series devices are not supported on newer versions anymore.\u003cp\u003e\u003c/p\u003e"
}
],
"value": "An Improper Check for Unusual or Exceptional Conditions vulnerability in the packet forwarding engine (pfe) of Juniper Networks Junos OS on QFX10000 Series allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).\n\nOn all QFX10000 platforms in an EVPN-VxLAN scenario, if an attacker sends IPv6 multicast traffic and these packets reach the non-IRB interface of a spine switch it floods the packet to other spines and all Ethernet Segment Identifier (ESI)\u00a0leaf switches. This flooding causes the packet to be forwarded in a endless loop, which can lead to saturation of the involved links and in turn impact to legitimate traffic.\n\n\n\nThis issue affects Junos OS on QFX10000 Series:\n\n\n * all versions before 23.2R2-S7,\n * 23.4 versions before 23.4R2-S8,\n * 24.2 versions before 24.2R2-S4,\n * 24.4 versions before 24.4R2-S4.\n\n\n\nThis issue does not affect Junos version after 24.4 as the QFX10000 Series devices are not supported on newer versions anymore."
}
],
"exploits": [
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"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
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"metrics": [
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"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
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"attackRequirements": "NONE",
"attackVector": "ADJACENT",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "LOW",
"subConfidentialityImpact": "NONE",
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"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/AU:Y/R:U/RE:M",
"version": "4.0",
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"problemTypes": [
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"descriptions": [
{
"cweId": "CWE-754",
"description": "CWE-754 Improper Check for Unusual or Exceptional Conditions",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-09T21:05:07.368Z",
"orgId": "8cbe9d5a-a066-4c94-8978-4b15efeae968",
"shortName": "juniper"
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"references": [
{
"tags": [
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"url": "https://supportportal.juniper.net/JSA110080"
}
],
"solutions": [
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"lang": "en",
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"value": "The following software releases have been updated to resolve this specific issue:\n\nJunos OS: 23.2R2-S7, 23.4R2-S8, 24.2R2-S4, 24.4R2-S4."
}
],
"value": "The following software releases have been updated to resolve this specific issue:\n\nJunos OS: 23.2R2-S7, 23.4R2-S8, 24.2R2-S4, 24.4R2-S4."
}
],
"source": {
"advisory": "JSA110080",
"defect": [
"1916949"
],
"discovery": "USER"
},
"title": "Junos OS: QFX10000 Series: IPv6 multicast traffic received on non-IRB interfaces causes a multicast flood",
"workarounds": [
{
"lang": "en",
"supportingMedia": [
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"value": "There are no known workarounds for this issue."
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"cveId": "CVE-2026-57020",
"datePublished": "2026-07-09T21:05:07.368Z",
"dateReserved": "2026-06-23T16:27:00.248Z",
"dateUpdated": "2026-07-09T21:05:07.368Z",
"state": "PUBLISHED"
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