Common Weakness Enumeration
CWE-121
AllowedStack-based Buffer Overflow
Abstraction: Variant · Status: Draft
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).
5827 vulnerabilities reference this CWE, most recent first.
CVE-2026-58082 (GCVE-0-2026-58082)
Vulnerability from cvelistv5 – Published: 2026-08-19 07:20 – Updated: 2026-08-26 19:42
VLAI
EPSS
VEX
Title
Stack based buffer overflow in iconv(3)
Summary
The ISO-2022 encoding module used a stack buffer sized to MB_LEN_MAX (6 bytes) for intermediate character output. Some ISO-2022 variants can require up to 10 bytes per character, in which case conversions can trigger a stack buffer overflow of up to four bytes.
An application that uses iconv(3) to convert untrusted input to or from one of the affected encodings may be vulnerable to buffer overflows if it uses one of the affected encoding modules.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 19:42 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.freebsd.org/advisories/FreeBSD-S… | vendor-advisory |
Impacted products
Date Public
2026-06-30 20:00
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CVE-2026-58008 (GCVE-0-2026-58008)
Vulnerability from cvelistv5 – Published: 2026-09-24 14:52 – Updated: 2026-09-24 15:01
VLAI
EPSS
VEX
Title
Unchecked HKDF key-size input in EL3 causes a stack buffer overflow
Summary
Stack-based buffer overflow vulnerability in Altera Trusted Firmware on HPS allows Exploitation of Improperly Configured or Implemented Memory Protections.
This issue affects Trusted Firmware: through socfpga_v2.14.0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 15:01 UTC
CWE
- CWE-121 - Stack-based buffer overflow
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Altera | Trusted Firmware |
Affected:
0 , ≤ socfpga_v2.14.0
(custom)
cpe:2.3:a:altera:trusted_firmware:*:*:arm:*:*:*:*:* |
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CVE-2026-57881 (GCVE-0-2026-57881)
Vulnerability from cvelistv5 – Published: 2026-06-26 07:17 – Updated: 2026-06-26 16:08
VLAI
EPSS
VEX
Title
GV-LPC2011/LPC2211 - unauthorized stack-based buffer overflow vulnerability (vlsvr)
Summary
An unauthenticated
stack-based buffer overflow vulnerability exists in vlsvr in GeoVision
GV-LPC2011 and GV-LPC2211 V1.12 and earlier. The vulnerability is caused by
insufficient length validation when processing remote login data. A remote
attacker may exploit this vulnerability by sending crafted login data with
overly long input, resulting in memory corruption, denial of service, or potentially
arbitrary code execution.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-26 16:06 UTC
CWE
- CWE-121 - Stack-based buffer overflow
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GeoVision Inc. | GV-LPCLPC2011/2211 |
Affected:
1.12
Unaffected: 1.13 cpe:2.3:a:geovision_inc.:gv-lpclpc2011_2211:1.12:*:linux:*:*:*:*:* |
Date Public
2026-06-26 02:55
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CVE-2026-57880 (GCVE-0-2026-57880)
Vulnerability from cvelistv5 – Published: 2026-06-26 07:17 – Updated: 2026-06-26 17:11
VLAI
EPSS
VEX
Title
GV-LPC2011/LPC2211 - unauthorized buffer overflow via RTSP Digest username (ssvr)
Summary
An unauthenticated
stack-based buffer overflow vulnerability exists in ssvr in GeoVision
GV-LPC2011 and GV-LPC2211 V1.12 and earlier. The vulnerability is caused by
insufficient bounds checking when parsing RTSP Digest authentication fields. A
remote attacker may exploit this vulnerability by sending a crafted RTSP
request containing overly long authentication data, resulting in memory
corruption, denial of service, or potentially arbitrary code execution.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-26 17:10 UTC
CWE
- CWE-121 - Stack-based buffer overflow
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GeoVision Inc. | GV-LPCLPC2011/2211 |
Affected:
1.12
Unaffected: 1.13 cpe:2.3:a:geovision_inc.:gv-lpclpc2011_2211:1.12:*:linux:*:*:*:*:* |
Date Public
2026-06-26 02:55
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CVE-2026-57879 (GCVE-0-2026-57879)
Vulnerability from cvelistv5 – Published: 2026-06-26 07:17 – Updated: 2026-06-26 15:57
VLAI
EPSS
VEX
Title
GV-LPC2011/LPC2211 - unauthorized buffer overflow via AuthMode/AuthValue path (ssvr)
Summary
An unauthenticated
stack-based buffer overflow vulnerability exists in ssvr in GeoVision
GV-LPC2011 and GV-LPC2211 V1.12 and earlier. The vulnerability is caused by
insufficient bounds checking when processing RTSP custom authentication data. A
remote attacker may exploit this vulnerability by sending a crafted RTSP
request, resulting in memory corruption, denial of service, or potentially
arbitrary code execution.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-26 15:55 UTC
CWE
- CWE-121 - Stack-based buffer overflow
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GeoVision Inc. | GV-LPCLPC2011/2211 |
Affected:
1.12
Unaffected: 1.13 cpe:2.3:a:geovision_inc.:gv-lpclpc2011_2211:1.12:*:linux:*:*:*:*:* |
Date Public
2026-06-26 02:55
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CVE-2026-57878 (GCVE-0-2026-57878)
Vulnerability from cvelistv5 – Published: 2026-06-26 07:17 – Updated: 2026-06-26 15:46
VLAI
EPSS
VEX
Title
GV-LPC2011/LPC2211 - unauthorized buffer overflow vulnerability (thttpd)
Summary
An unauthenticated
stack-based buffer overflow vulnerability exists in thttpd in GeoVision
GV-LPC2011 and GV-LPC2211 V1.12 and earlier. The vulnerability is caused by
insufficient bounds checking when processing web request parameters in a
specific request path. A remote attacker may exploit this vulnerability by
sending a crafted HTTP request with overly long input, resulting in memory
corruption, denial of service, or potentially arbitrary code execution.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-26 15:43 UTC
CWE
- CWE-121 - Stack-based buffer overflow
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GeoVision Inc. | GV-LPCLPC2011/2211 |
Affected:
1.12
Unaffected: 1.13 cpe:2.3:a:geovision_inc.:gv-lpclpc2011_2211:1.12:*:linux:*:*:*:*:* |
Date Public
2026-06-26 02:55
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CVE-2026-57166 (GCVE-0-2026-57166)
Vulnerability from cvelistv5 – Published: 2026-09-04 17:12 – Updated: 2026-09-09 16:03
VLAI
EPSS
VEX
Title
PJSIP: Pre-authentication overflow in the telnet CLI error
Summary
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 4472a31, a stack buffer overflow exists in the PJLIB-UTIL telnet CLI front-end when rendering feedback for an entered command line. Several command-line handling paths write an attacker-influenced amount of data into fixed-size buffers without sufficient bounds checking, so a long command line can overflow them. This affects only applications that enable the telnet CLI front-end (e.g. pj_cli_telnet_create() / --cli-telnet-port). The telnet CLI is an interactive administration interface with no authentication, so any client able to reach it can already issue arbitrary CLI commands. A malformed or overly long command line can overflow a fixed-size stack buffer while rendering command-line feedback, which may lead to application termination. Because reaching this code already requires access to the unauthenticated CLI, the impact beyond that existing access is limited. Applications that do not enable the telnet CLI front-end are not affected. This issue has been patched via commit 4472a31.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-09 16:03 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/pjsip/pjproject/security/advis… | x_refsource_CONFIRM |
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Impacted products
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CVE-2026-57165 (GCVE-0-2026-57165)
Vulnerability from cvelistv5 – Published: 2026-09-04 17:12 – Updated: 2026-09-08 17:33
VLAI
EPSS
VEX
Title
PJSIP: Pre-authentication overflow in the telnet CLI history
Summary
PJSIP is a free and open source multimedia communication library written in C. Prior to commit 628b716, a stack buffer overflow exists in the PJLIB-UTIL telnet CLI front-end when redrawing the command line during history recall (handle_up_down() in cli_telnet.c). This affects only applications that enable the telnet CLI front-end (same gating as the related CLI issue). The line-redraw sequence for a recalled history entry can accumulate more data than a fixed-size stack buffer holds, which may lead to application termination. Exploitation requires access to the unauthenticated telnet CLI, which already permits arbitrary CLI commands, so the additional impact is limited. Applications that do not enable the telnet CLI front-end are not affected. This issue has been patched via commit 628b716.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 16:37 UTC
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
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|---|---|
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CVE-2026-57163 (GCVE-0-2026-57163)
Vulnerability from cvelistv5 – Published: 2026-09-04 17:11 – Updated: 2026-09-04 17:25
VLAI
EPSS
VEX
Title
PJSIP: Stack overflow parsing a TLS peer certificate's SubjectAltName in GnuTLS backend
Summary
PJSIP is a free and open source multimedia communication library written in C. Prior to commit c4a151a, a stack buffer overflow exists in the GnuTLS TLS backend when parsing the Subject Alternative Name extension of a peer certificate (tls_cert_get_info() in ssl_sock_gtls.c). Only GnuTLS builds are affected (--with-gnutls); OpenSSL and Apple SecureTransport/Network.framework builds are not affected. While extracting certificate information after a TLS handshake, an incorrect buffer-size value can cause an oversized SubjectAltName entry to be written past the end of a fixed-size stack buffer. A network-positioned attacker presenting a crafted certificate — a malicious server to a connecting client, or a malicious client to a server that requests certificates — can trigger this during the TLS handshake, before any SIP-level authentication. Impact may range from unexpected application termination to control flow hijack/memory corruption. This issue has been patched via commit c4a151a.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 17:25 UTC
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/c4a151a… | x_refsource_MISC |
Impacted products
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CVE-2026-57162 (GCVE-0-2026-57162)
Vulnerability from cvelistv5 – Published: 2026-09-04 17:11 – Updated: 2026-09-04 17:26
VLAI
EPSS
VEX
Title
PJSIP: Stack overflow parsing SDP a=crypto attributes
Summary
PJSIP is a free and open source multimedia communication library written in C. Prior to commit a1b707c, a stack buffer overflow exists in the SRTP/SDES media transport when processing a=crypto attributes during SDP offer/answer (sdes_encode_sdp() in transport_srtp_sdes.c). This affects applications with SRTP enabled (use_srtp optional or mandatory, using SDES keying). During media negotiation, the crypto attributes from the remote SDP are collected into a fixed-size array without bounding their number; a remote peer that includes an excessive number of a=crypto attributes in a single media description can write past the end of that array on the stack. This is reachable from an incoming SIP INVITE during offer/answer, before application-level authentication. Impact may range from unexpected application termination to control flow hijack/memory corruption. Applications that do not enable SRTP are not affected. This issue has been patched via commit a1b707c.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 17:25 UTC
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/a1b707c… | x_refsource_MISC |
Impacted products
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Mitigation MIT-10
Operation
Build and Compilation
Strategy: Environment Hardening
- 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
Architecture and Design
Use an abstraction library to abstract away risky APIs. Not a complete solution.
Mitigation
Implementation
Implement and perform bounds checking on input.
Mitigation
Implementation
Do not use dangerous functions such as gets. Use safer, equivalent functions which check for boundary errors.
Mitigation MIT-11
Operation
Build and Compilation
Strategy: Environment Hardening
- 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.