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-2026-40170 (GCVE-0-2026-40170)
Vulnerability from cvelistv5 – Published: 2026-04-16 21:34 – Updated: 2026-04-20 15:00
VLAI
Title
ngtcp2 has a qlog transport parameter serialization stack buffer overflow
Summary
ngtcp2 is a C implementation of the IETF QUIC protocol. In versions prior to 1.22.1, ngtcp2_qlog_parameters_set_transport_params() serializes peer transport parameters into a fixed 1024-byte stack buffer without bounds checking. When qlog is enabled, a remote peer can send sufficiently large transport parameters during the QUIC handshake to cause writes beyond the buffer boundary, resulting in a stack buffer overflow. This affects deployments that enable the qlog callback and process untrusted peer transport parameters. This issue has been fixed in version 1.22.1. If developers are unable to immediately upgrade, they can disable the qlog on client.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/ngtcp2/ngtcp2/security/advisor… | x_refsource_CONFIRM |
| https://github.com/ngtcp2/ngtcp2/commit/708a7640c… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2026/0… |
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CVE-2026-40399 (GCVE-0-2026-40399)
Vulnerability from cvelistv5 – Published: 2026-05-12 16:58 – Updated: 2026-06-05 16:38
VLAI
Title
Windows TCP/IP Elevation of Privilege Vulnerability
Summary
Concurrent execution using shared resource with improper synchronization ('race condition') in Windows TCP/IP allows an authorized attacker to elevate privileges locally.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
17 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.14393.0 , < 10.0.14393.9140
(custom)
|
|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.8755
(custom)
|
|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19044.0 , < 10.0.19044.7291
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.7291
(custom)
|
|
| Microsoft | Windows 11 version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7079
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.7079
(custom)
|
|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.8457
(custom)
|
|
| Microsoft | Windows 11 Version 25H2 |
Affected:
10.0.26200.0 , < 10.0.26200.8457
(custom)
|
|
| Microsoft | Windows 11 version 26H1 |
Affected:
10.0.28000.0 , < 10.0.28000.2113
(custom)
|
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.14393.0 , < 10.0.14393.9140
(custom)
|
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.14393.0 , < 10.0.14393.9140
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.8755
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.8755
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.5139
(custom)
|
|
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) |
Affected:
10.0.25398.0 , < 10.0.25398.2330
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.32860
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.32860
(custom)
|
Date Public
2026-05-12 14:00
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CVE-2026-4041 (GCVE-0-2026-4041)
Vulnerability from cvelistv5 – Published: 2026-03-12 15:02 – Updated: 2026-03-12 15:34
VLAI
Title
Tenda i12 exeCommand vos_strcpy stack-based overflow
Summary
A security flaw has been discovered in Tenda i12 1.0.0.6(2204). Impacted is the function vos_strcpy of the file /goform/exeCommand. The manipulation of the argument cmdinput results in stack-based buffer overflow. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.350653 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.350653 | signaturepermissions-required |
| https://vuldb.com/?submit.769462 | third-party-advisory |
| https://github.com/Jimi-Lab/cve/issues/1 | exploitissue-tracking |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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CVE-2026-4042 (GCVE-0-2026-4042)
Vulnerability from cvelistv5 – Published: 2026-03-12 15:02 – Updated: 2026-03-12 15:34
VLAI
Title
Tenda i12 WifiMacFilterGet formWifiMacFilterGet stack-based overflow
Summary
A weakness has been identified in Tenda i12 1.0.0.6(2204). The affected element is the function formWifiMacFilterGet of the file /goform/WifiMacFilterGet. This manipulation of the argument index causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.350654 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.350654 | signaturepermissions-required |
| https://vuldb.com/?submit.769463 | third-party-advisory |
| https://github.com/Jimi-Lab/cve/issues/2 | exploitissue-tracking |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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CVE-2026-4043 (GCVE-0-2026-4043)
Vulnerability from cvelistv5 – Published: 2026-03-12 15:32 – Updated: 2026-03-12 15:45
VLAI
Title
Tenda i12 wifiSSIDget formwrlSSIDget stack-based overflow
Summary
A security vulnerability has been detected in Tenda i12 1.0.0.6(2204). The impacted element is the function formwrlSSIDget of the file /goform/wifiSSIDget. Such manipulation of the argument index leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed publicly 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.350655 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.350655 | signaturepermissions-required |
| https://vuldb.com/?submit.769464 | third-party-advisory |
| https://github.com/Jimi-Lab/cve/issues/3 | exploitissue-tracking |
| https://www.tenda.com.cn/ | product |
Impacted products
Credits
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CVE-2026-40489 (GCVE-0-2026-40489)
Vulnerability from cvelistv5 – Published: 2026-04-18 01:24 – Updated: 2026-04-20 16:15
VLAI
Title
editorconfig-core-c has incomplete fix for CVE-2023-0341
Summary
editorconfig-core-c is an EditorConfig core library for use by plugins supporting EditorConfig parsing. Versions up to and including 0.12.10 have a stack-based buffer overflow in ec_glob() that allows an attacker to crash any application using libeditorconfig by providing a specially crafted directory structure and .editorconfig file. This is an incomplete fix for CVE-2023-0341. The pcre_str buffer was protected in 0.12.6 but the adjacent l_pattern[8194] stack buffer received no equivalent protection. On Ubuntu 24.04, FORTIFY_SOURCE converts the overflow to SIGABRT (DoS). Version 0.12.11 contains an updated fix.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/editorconfig/editorconfig-core… | x_refsource_CONFIRM |
| https://github.com/editorconfig/editorconfig-core… | x_refsource_MISC |
| https://github.com/editorconfig/editorconfig-core… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| editorconfig | editorconfig-core-c |
Affected:
< 0.12.11
|
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CVE-2026-40510 (GCVE-0-2026-40510)
Vulnerability from cvelistv5 – Published: 2026-05-29 13:26 – Updated: 2026-06-01 13:37 X_Open Source
VLAI
Title
OpenSC < 0.27.0-rc1 Stack Buffer Overflow via piv_process_history() in card-piv.c
Summary
OpenSC before 0.27.0-rc1, fixed in commit 3f24f0b, contains a stack buffer overflow vulnerability in piv_process_history() in src/libopensc/card-piv.c that allows physically present attackers to trigger memory corruption by presenting a crafted PIV smart card or USB device returning a URL field longer than 118 bytes in the Key History Object ASN.1 response.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/OpenSC/OpenSC/pull/3558 | issue-tracking |
| https://github.com/OpenSC/OpenSC/commit/3f24f0b48… | patch |
| https://www.vulncheck.com/advisories/opensc-stack… | third-party-advisory |
Impacted products
Date Public
2026-01-26 00:00
Credits
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CVE-2026-40528 (GCVE-0-2026-40528)
Vulnerability from cvelistv5 – Published: 2026-05-29 13:38 – Updated: 2026-05-29 13:58 X_Open Source
VLAI
Title
OpenSC < 0.27.0 Buffer Overrun in do_key_value() via profile.c
Summary
OpenSC before 0.27.0, fixed in commit 0358817, contains a stack and heap buffer overrun vulnerability in the do_key_value() function in src/pkcs15init/profile.c that allows attackers to corrupt memory by supplying a crafted profile configuration file. During pkcs15-init invocation, a key value entry beginning with '=' followed by more than sizeof(keybuf) characters is copied into keybuf via memcpy without a length check, causing both stack and heap buffer overruns.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/OpenSC/OpenSC/commit/0358817ec… | patch |
| https://www.vulncheck.com/advisories/opensc-buffe… | third-party-advisory |
Impacted products
Date Public
2026-03-30 00:00
Credits
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CVE-2026-40892 (GCVE-0-2026-40892)
Vulnerability from cvelistv5 – Published: 2026-04-21 19:55 – Updated: 2026-04-21 20:27
VLAI
Title
PJSIP: Stack buffer overflow in pjsip_auth_create_digest2()
Summary
PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, a stack buffer overflow exists in pjsip_auth_create_digest2() in PJSIP when using pre-computed digest credentials (PJSIP_CRED_DATA_DIGEST). The function copies credential data using cred_info->data.slen as the length without an upper-bound check, which can overflow the fixed-size ha1 stack buffer (128 bytes) if data.slen exceeds the expected digest string length.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/pjsip/pjproject/security/advis… | x_refsource_CONFIRM |
| https://github.com/pjsip/pjproject/commit/c82123e… | x_refsource_MISC |
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CVE-2026-41089 (GCVE-0-2026-41089)
Vulnerability from cvelistv5 – Published: 2026-05-12 16:58 – Updated: 2026-06-05 16:38
VLAI
Title
Windows Netlogon Remote Code Execution Vulnerability
Summary
Stack-based buffer overflow in Windows Netlogon allows an unauthorized attacker to execute code over a network.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
12 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows Server 2012 |
Affected:
6.2.9200.0 , < 6.2.9200.26079
(custom)
|
|
| Microsoft | Windows Server 2012 (Server Core installation) |
Affected:
6.2.9200.0 , < 6.2.9200.26079
(custom)
|
|
| Microsoft | Windows Server 2012 R2 |
Affected:
6.3.9600.0 , < 6.3.9600.23181
(custom)
|
|
| Microsoft | Windows Server 2012 R2 (Server Core installation) |
Affected:
6.3.9600.0 , < 6.3.9600.23181
(custom)
|
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.14393.0 , < 10.0.14393.9140
(custom)
|
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.14393.0 , < 10.0.14393.9140
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.8755
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.8755
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.5139
(custom)
|
|
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) |
Affected:
10.0.25398.0 , < 10.0.25398.2330
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.32860
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.32860
(custom)
|
Date Public
2026-05-12 14:00
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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.