Common Weakness Enumeration
CWE-1284
AllowedImproper Validation of Specified Quantity in Input
Abstraction: Base · Status: Incomplete
The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.
510 vulnerabilities reference this CWE, most recent first.
CVE-2026-57053 (GCVE-0-2026-57053)
Vulnerability from cvelistv5 – Published: 2026-06-23 16:40 – Updated: 2026-06-23 17:40
VLAI
EPSS
VEX
Summary
GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idna_to_unicode_internal. The affected code is not present in libidn2.
Severity
4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
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CVE-2026-57023 (GCVE-0-2026-57023)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:06 – Updated: 2026-07-10 15:28
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).
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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
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
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-2026-57019 (GCVE-0-2026-57019)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:04 – Updated: 2026-07-10 13:29
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
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
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-2026-56035 (GCVE-0-2026-56035)
Vulnerability from cvelistv5 – Published: 2026-06-26 14:52 – Updated: 2026-06-26 20:18
VLAI
EPSS
VEX
Title
WordPress BitFire Security plugin <= 5.0.3 - Multiple Vulnerabilities vulnerability
Summary
Unauthenticated Multiple Vulnerabilities in BitFire Security <= 5.0.3 versions.
Severity
8.6 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cory Marsh | BitFire Security |
Affected:
n/a , ≤ 5.0.3
(custom)
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CVE-2026-55952 (GCVE-0-2026-55952)
Vulnerability from cvelistv5 – Published: 2026-07-02 16:06 – Updated: 2026-07-24 14:14
VLAI
EPSS
VEX
Title
TLS 1.3 server denial of service via malformed ClientHello pre-shared key extension
Summary
The Erlang/OTP ssl application does not validate that the PSK identity list and binder list carried in a TLS 1.3 ClientHello pre-shared key extension have equal length before passing them to the session ticket handler. In tls_handshake_1_3:handle_pre_shared_key/3, an OfferedPreSharedKeys record with a mismatched number of identities and binders is forwarded directly to tls_server_session_ticket:use/4, which crashes the session ticket handler process.
An unauthenticated remote attacker can send a single crafted ClientHello to a TLS 1.3 server with session tickets enabled (stateful or stateless mode) and permanently disrupt session ticket handling on that listener. New TLS 1.3 handshakes complete but subsequently crash when the server attempts to issue a session ticket, effectively making TLS 1.3 unusable on the affected listener until the ssl application is restarted. TLS 1.2 connections are not affected.
This issue affects OTP from OTP 22.2 before OTP 29.0.3, OTP 28.5.0.3 and OTP 27.3.4.14, corresponding to ssl from 9.5 before 11.7.3, 11.6.0.3 and 11.2.12.10.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/erlang/otp/security/advisories… | vendor-advisoryrelated |
| https://cna.erlef.org/cves/CVE-2026-55952.html | related |
| https://osv.dev/vulnerability/EEF-CVE-2026-55952 | related |
| https://www.erlang.org/doc/system/versions.html#o… | x_version-scheme |
| https://github.com/erlang/otp/commit/e77823e6d980… | patch |
| https://github.com/erlang/otp/commit/2c3e59979764… | patch |
| https://github.com/erlang/otp/commit/9b5437c72fa3… | patch |
Impacted products
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CVE-2026-55706 (GCVE-0-2026-55706)
Vulnerability from cvelistv5 – Published: 2026-06-17 00:53 – Updated: 2026-06-17 14:33
VLAI
EPSS
VEX
Summary
sppp_pap_input in sys/net/if_spppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths.
Severity
5.8 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
Impacted products
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CVE-2026-55392 (GCVE-0-2026-55392)
Vulnerability from cvelistv5 – Published: 2026-06-18 18:00 – Updated: 2026-07-14 21:33 X_Open Source
VLAI
EPSS
VEX
Title
NILFS utilities - Undefined Behavior and Out-of-Memory via Unvalidated s_log_block_size
Summary
NILFS utilities through 2.3.0, fixed in commit 26efb5d, nilfs_sb_is_valid() function fails to validate s_log_block_size field in NILFS2 superblock before bit-shift operations. Attackers supplying crafted NILFS2 images trigger undefined behavior through oversized shifts or out-of-memory conditions, crashing tools like nilfs-tune and dumpseg.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/nilfs-dev/nilfs-utils/issues/26 | issue-tracking |
| https://github.com/nilfs-dev/nilfs-utils/commit/2… | patch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| nilfs-dev | nilfs-utils |
Affected:
0 , ≤ 2.3.0
(semver)
Unaffected: 26efb5daff0757365101035145331b0a5a85d9d9 (git) |
Date Public
2026-06-10 00:00
Credits
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CVE-2026-54234 (GCVE-0-2026-54234)
Vulnerability from cvelistv5 – Published: 2026-07-06 19:49 – Updated: 2026-07-07 14:13
VLAI
EPSS
VEX
Title
vLLM: Remote DoS in vLLM via Invalid Recovered Token Reinjection
Summary
vLLM is a high-throughput and memory-efficient inference and serving engine for LLMs. Prior to 0.24.0, a frontend-legal multi-request speculative decoding workload can cause the rejection sampler to produce a recovered token equal to the model vocabulary size boundary value, which is then converted to negative one when the engine selects the next live token for a request and is written back into the drafter's input ids; that out-of-vocabulary value is later consumed by the model's embedding and attention path and crashes the engine worker with a GPU device-side assertion. The same triggering request sequence is reachable through the public gRPC Generate and Abort endpoints, so a remote client that can send generation requests can crash the shared engine worker, aborting concurrent requests and causing a service-wide denial of service for other clients of the deployment until the worker is restarted. This issue is fixed in version 0.24.0.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/vllm-project/vllm/security/adv… | x_refsource_CONFIRM |
| https://github.com/vllm-project/vllm/pull/44744 | x_refsource_MISC |
| https://github.com/vllm-project/vllm/commit/8a5cf… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| vllm-project | vllm |
Affected:
< 0.24.0
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CVE-2026-54092 (GCVE-0-2026-54092)
Vulnerability from cvelistv5 – Published: 2026-06-25 17:41 – Updated: 2026-06-26 02:13
VLAI
EPSS
VEX
Title
File Browser: DoS Vulnerability on Public Login API
Summary
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.6, unchecked passwords maximums allow for an arbitrarily large password to be passed into the login API. This spikes CPU and memory, and after testing, crashes, heavily lags any container created, and has even made my docker daemon start to send errors with status code 500 even after the container was destroyed. This vulnerability is fixed in 2.63.6.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/filebrowser/filebrowser/securi… | x_refsource_CONFIRM |
| https://github.com/filebrowser/filebrowser/commit… | x_refsource_MISC |
| https://github.com/filebrowser/filebrowser/releas… | x_refsource_MISC |
| https://vincent.vulcoord.net/score/?state=Not+Sco… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| filebrowser | filebrowser |
Affected:
< 2.63.6
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CVE-2026-53689 (GCVE-0-2026-53689)
Vulnerability from cvelistv5 – Published: 2026-06-10 13:44 – Updated: 2026-07-19 08:47
VLAI
EPSS
VEX
Summary
libnfs through 6.0.2 before 55c18ea does not validate a string size, leading to an integer overflow during a connection to a crafted NFS server. This occurs in libnfs_zdr_string in lib/libnfs-zdr.c.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
Impacted products
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Mitigation MIT-5
Implementation
Strategy: Input Validation
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
No CAPEC attack patterns related to this CWE.