CWE-121
Stack-based Buffer Overflow
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CVE-2026-4961 (GCVE-0-2026-4961)
Vulnerability from cvelistv5 – Published: 2026-03-27 16:09 – Updated: 2026-03-27 22:07
VLAI
Title
Tenda AC6 POST Request QuickIndex formQuickIndex stack-based overflow
Summary
A vulnerability was identified in Tenda AC6 15.03.05.16. Affected by this vulnerability is the function formQuickIndex of the file /goform/QuickIndex of the component POST Request Handler. The manipulation of the argument PPPOEPassword leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353838 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353838 | signaturepermissions-required |
| https://vuldb.com/?submit.777617 | third-party-advisory |
| https://lavender-bicycle-a5a.notion.site/Tenda-AC… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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CVE-2026-4974 (GCVE-0-2026-4974)
Vulnerability from cvelistv5 – Published: 2026-03-27 19:52 – Updated: 2026-03-31 13:54
VLAI
Title
Tenda AC7 POST Request SetSysTimeCfg fromSetSysTime memory corruption
Summary
A flaw has been found in Tenda AC7 15.03.06.44. Affected by this issue is the function fromSetSysTime of the file /goform/SetSysTimeCfg of the component POST Request Handler. Executing a manipulation of the argument Time can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been published and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353861 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353861 | signaturepermissions-required |
| https://vuldb.com/?submit.778207 | third-party-advisory |
| https://lavender-bicycle-a5a.notion.site/Tenda-AC… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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CVE-2026-4975 (GCVE-0-2026-4975)
Vulnerability from cvelistv5 – Published: 2026-03-27 19:52 – Updated: 2026-03-30 18:58
VLAI
Title
Tenda AC15 POST Request setcfm formSetCfm memory corruption
Summary
A vulnerability has been found in Tenda AC15 15.03.05.19. This affects the function formSetCfm of the file /goform/setcfm of the component POST Request Handler. The manipulation of the argument funcpara1 leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353862 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353862 | signaturepermissions-required |
| https://vuldb.com/?submit.778261 | third-party-advisory |
| https://lavender-bicycle-a5a.notion.site/Tenda-AC… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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CVE-2026-49943 (GCVE-0-2026-49943)
Vulnerability from cvelistv5 – Published: 2026-06-02 16:16 – Updated: 2026-06-02 18:24
VLAI
Summary
CZ.NIC BIRD Internet Routing Daemon through 2.19.0 contains a stack-based buffer overflow in the BGP AS_PATH mask matching implementation in nest/a-path.c. The as_path_match() function uses a fixed-size stack array of 2048 + 1 pm_pos entries, while parse_path() expands AS_PATH segments from a received BGP UPDATE without enforcing a corresponding capacity limit. When RFC 8654 BGP Extended Messages are enabled and a BIRD filter evaluates an AS path mask expression such as "bgp_path ~ [= ... =]", an established BGP peer can send a long AS_PATH containing more than 2048 expanded ASNs. This causes parse_path()/as_path_match() to write beyond the fixed stack buffer, resulting in a crash of the daemon. NOTE: reportedly, the Supplier's position is that a fix is not being prioritized because all network operators should already be rejecting routes with unusually long attributes.
Severity
6.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
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CVE-2026-50031 (GCVE-0-2026-50031)
Vulnerability from cvelistv5 – Published: 2026-06-03 03:07 – Updated: 2026-06-03 13:40
VLAI
Summary
ipmi-oem in FreeIPMI before 1.6.18 has exploitable buffer overflows on response messages. The Intelligent Platform Management Interface (IPMI) specification defines a set of interfaces for platform management. It is implemented by a large number of hardware manufacturers to support system management. It is most commonly used for sensor reading (e.g., CPU temperatures through the ipmi-sensors command within FreeIPMI) and remote power control (the ipmipower command). The ipmi-oem client command implements a set of a IPMI OEM commands for specific hardware vendors. If a user has supported hardware, they may wish to use the ipmi-oem command to send a request to a server to retrieve specific information. Two subcommands "ipmi-oem dell get-active-directory-config" and "ipmi-oem fujitsu get-sel-entry-long-text" were found to have exploitable buffer overflows on response messages.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
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CVE-2026-5004 (GCVE-0-2026-5004)
Vulnerability from cvelistv5 – Published: 2026-03-28 17:30 – Updated: 2026-03-30 16:01
VLAI
Title
Wavlink WL-WN579X3-C UPNP firewall.cgi sub_4019FC stack-based overflow
Summary
A vulnerability was determined in Wavlink WL-WN579X3-C 231124. This impacts the function sub_4019FC of the file /cgi-bin/firewall.cgi of the component UPNP Handler. Executing a manipulation of the argument UpnpEnabled can lead to stack-based buffer overflow. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/353891 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/353891/cti | signaturepermissions-required |
| https://vuldb.com/submit/779149 | third-party-advisory |
| https://github.com/Litengzheng/vul_db/blob/main/W… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Wavlink | WL-WN579X3-C |
Affected:
231124
cpe:2.3:o:wavlink:wl-wn579x3-c_firmware:*:*:*:*:*:*:*:* |
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CVE-2026-5021 (GCVE-0-2026-5021)
Vulnerability from cvelistv5 – Published: 2026-03-29 01:15 – Updated: 2026-03-30 14:32
VLAI
Title
Tenda F453 httpd PPTPUserSetting fromPPTPUserSetting stack-based overflow
Summary
A flaw has been found in Tenda F453 1.0.0.3. This affects the function fromPPTPUserSetting of the file /goform/PPTPUserSetting of the component httpd. This manipulation of the argument delno causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been published and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/353906 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/353906/cti | signaturepermissions-required |
| https://vuldb.com/submit/778415 | third-party-advisory |
| https://github.com/Litengzheng/vul_db/blob/main/F… | exploit |
| https://www.tenda.com.cn/ | product |
Impacted products
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CVE-2026-5024 (GCVE-0-2026-5024)
Vulnerability from cvelistv5 – Published: 2026-03-29 02:45 – Updated: 2026-03-30 15:53 Unsupported When Assigned
VLAI
Title
D-Link DIR-513 formSetEmail stack-based overflow
Summary
A vulnerability was found in D-Link DIR-513 1.10. This issue affects the function formSetEmail of the file /goform/formSetEmail. Performing a manipulation of the argument curTime results in stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been made public and could be used. This vulnerability only affects products that are no longer supported by the maintainer.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/353908 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/353908/cti | signaturepermissions-required |
| https://vuldb.com/submit/778414 | third-party-advisory |
| https://github.com/Litengzheng/vul_db/blob/main/D… | exploit |
| https://www.dlink.com/ | product |
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CVE-2026-50256 (GCVE-0-2026-50256)
Vulnerability from cvelistv5 – Published: 2026-06-05 10:31 – Updated: 2026-06-05 10:31
VLAI
Title
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in font alias resolution due to libxfont2 name length mismatch
Summary
A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. A mismatch between the X server and the libXfont2 library's maximum font name length can cause a stack buffer overflow during font alias resolution. The server allocates a 256 byte stack buffer but libXfont2's alias target name length is 1024 bytes. A font alias name between 257 and 1023 bytes causes the X server to copy that name into the undersized stack buffer without further checks. This may be used to crash the server, or for privilege escalation if the X server runs as root.
Severity
7.8 (High)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-50256 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2485380 | issue-trackingx_refsource_REDHAT |
| https://gitlab.freedesktop.org/xorg/xserver/-/com… | |
| https://lists.x.org/archives/xorg-announce/2026-J… | |
| https://redhat.atlassian.net/browse/PSIRTSUPT-16950 |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
Date Public
2026-06-02 00:00
Credits
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CVE-2026-50258 (GCVE-0-2026-50258)
Vulnerability from cvelistv5 – Published: 2026-06-05 10:31 – Updated: 2026-06-05 10:31
VLAI
Title
Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: stack buffer overflow in xkb key types due to unchecked shift levels
Summary
A stack-based buffer overflow flaw was found in the X.Org X server and Xwayland. The X server has multiple stack buffers sized XkbMaxShiftLevel * XkbNumKbdGroups but CheckKeyTypes() does not verify or clamp non-canonical key types to XkbMaxShiftLevel. A client can change key types to excessive shift levels and trigger stack overflows. This is caused by an incomplete fix of CVE-2025-26597. This may be used to crash the server, or for privilege escalation if the X server runs as root.
Severity
7.8 (High)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-50258 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2485383 | issue-trackingx_refsource_REDHAT |
| https://gitlab.freedesktop.org/xorg/xserver/-/com… | |
| https://lists.x.org/archives/xorg-announce/2026-J… | |
| https://redhat.atlassian.net/browse/PSIRTSUPT-16950 |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
Date Public
2026-06-02 00:00
Credits
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Mitigation ID: MIT-10
Phases: Operation, Build and Compilation
Strategy: Environment Hardening
Description:
- Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
- D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation
Phase: Architecture and Design
Description:
- Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation
Phase: Implementation
Description:
- Implement and perform bounds checking on input.
Mitigation
Phase: Implementation
Description:
- Do not use dangerous functions such as gets. Use safer, equivalent functions which check for boundary errors.
Mitigation ID: MIT-11
Phases: Operation, Build and Compilation
Strategy: Environment Hardening
Description:
- Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
- Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
- For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
No CAPEC attack patterns related to this CWE.