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).
5313 vulnerabilities reference this CWE, most recent first.
CVE-2026-71267 (GCVE-0-2026-71267)
Vulnerability from cvelistv5 – Published: 2026-08-05 12:26 – Updated: 2026-08-05 15:54
VLAI
EPSS
VEX
Title
microtar Stack Buffer Overflow in mtar_write_file_header() and mtar_write_dir_header()
Summary
microtar's mtar_write_file_header() and mtar_write_dir_header() functions (src/microtar.c) copy a caller-supplied entry name into the 100-byte `name` field of a stack-allocated mtar_header_t via strcpy(h.name, name), with no check that strlen(name) is less than 100 before the copy. Any application that calls these functions with an externally-influenced filename longer than 99 characters (e.g. when archiving user-supplied or attacker-controlled filenames) triggers a stack buffer overflow.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
Credits
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CVE-2026-71266 (GCVE-0-2026-71266)
Vulnerability from cvelistv5 – Published: 2026-08-05 12:26 – Updated: 2026-08-05 15:40
VLAI
EPSS
VEX
Title
tinyobjloader-c Stack Buffer Overflow in MTL Material File Line Parsing
Summary
tinyobjloader-c's tinyobj_parse_and_index_mtl_file() (tinyobj_loader_c.h) reads each line of a .mtl material file into a fixed 4096-byte stack buffer `linebuf` via memcpy(linebuf, p, p_len), guarded only by `assert(p_len < 4095)`. Because assert() compiles to a no-op under -DNDEBUG (standard for release builds), a crafted .mtl file containing a line (e.g. a "newmtl" material name) longer than 4096 bytes overflows linebuf into the adjacent stack variable namebuf and beyond, corrupting the stack of any application that loads attacker-supplied 3D model/material files. The identical vulnerable pattern is duplicated in a second function in the same file.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| syoyo | tinyobjloader-c |
Affected:
0 , ≤ *
(custom)
|
Credits
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CVE-2026-71265 (GCVE-0-2026-71265)
Vulnerability from cvelistv5 – Published: 2026-08-05 12:26 – Updated: 2026-08-05 15:30
VLAI
EPSS
VEX
Title
Domoticz MochadTCP Stack Buffer Overflow via MOCHAD_RFSEC strcpy()
Summary
Domoticz's MochadTCP::MatchLine() handler for MOCHAD_RFSEC messages (hardware/MochadTCP.cpp) copies network-received data from the up-to-1028-byte m_mochadbuffer into a fixed 50-byte stack buffer tempRFSECbuf using strcpy() with no length check, across three separate code branches (DS10A/KR10A/MS10A device types). An attacker on the local network segment able to reach the Mochad TCP bridge (default port 1099, no authentication) can send a crafted packet that overflows tempRFSECbuf by up to several hundred bytes, corrupting the Domoticz worker thread's stack.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
Credits
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CVE-2026-67248 (GCVE-0-2026-67248)
Vulnerability from cvelistv5 – Published: 2026-07-30 03:48 – Updated: 2026-08-04 07:32
VLAI
EPSS
VEX
Title
A stack-based buffer overflow vulnerability was found in the File Explorer on the ADM
Summary
A stack-based buffer overflow vulnerability was found in the File Explorer on the ADM. The vulnerability occurs because user-controlled input is not properly validated before being decoded and copied into a fixed-size stack buffer. An authenticated attacker can exploit this issue to cause denial of service of the affected CGI process. Further impact may be possible depending on exploitability and runtime protections.
Affected products and versions include: from ADM 4.1.0 through ADM 4.3.3.RUN1 as well as from ADM 5.0.0 through ADM 5.1.3.RI81.
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://www.asustor.com/security/security_advisor… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ASUSTOR Inc. | ADM |
Affected:
5.0.0 , ≤ 5.1.3.RI81
(custom)
Affected: 4.1.0 , ≤ 4.3.3.RUN1 (custom) |
Date Public
2026-07-30 03:50
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CVE-2026-67192 (GCVE-0-2026-67192)
Vulnerability from cvelistv5 – Published: 2026-07-29 15:51 – Updated: 2026-07-29 19:25
VLAI
EPSS
VEX
Title
Xlight FTP Server < 3.9.5 Pre-Auth Stack Buffer Overflow via SSH GCM Cipher
Summary
Xlight FTP Server before 3.9.5 contains a pre-authentication stack buffer overflow vulnerability that allows unauthenticated attackers to corrupt stack memory by sending malformed SSH packets when a GCM cipher is negotiated. Attackers can craft packets with an unvalidated length field passed directly to the GCM decrypt function, overwriting the stack cookie and return address to potentially achieve remote code execution before any authentication occurs.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.xlightftpd.com/whatsnew.htm | release-notes |
| https://www.vulncheck.com/advisories/xlight-ftp-s… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Xlight | Xlight FTP Server |
Affected:
0 , < 3.9.5
(semver)
|
Date Public
2026-07-01 00:00
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CVE-2026-64831 (GCVE-0-2026-64831)
Vulnerability from cvelistv5 – Published: 2026-07-22 16:35 – Updated: 2026-07-28 01:06 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 8.0 - 8.1.2 Stack Buffer Overflow in Vulkan HEVC Decoder
Summary
FFmpeg versions 8.0 through 8.1.2 contains a stack buffer overflow vulnerability in the Vulkan HEVC hardware decoder that allows remote attackers to overwrite return addresses and adjacent stack frames by supplying a crafted HEVC/H.265 bitstream. Attackers can embed a malicious vps_num_hrd_parameters value exceeding HEVC_MAX_SUB_LAYERS in any supported container format to overflow stack-allocated arrays in the vk_hevc_end_frame function, potentially achieving arbitrary code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23665 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/9273… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-stack… | third-party-advisory |
Impacted products
Date Public
2026-07-05 00:00
Credits
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CVE-2026-62655 (GCVE-0-2026-62655)
Vulnerability from cvelistv5 – Published: 2026-07-14 17:46 – Updated: 2026-07-15 16:52
VLAI
EPSS
VEX
Title
A DoS vulnerability due to stack overflow exists in certain NETGEAR Orbi models
Summary
A
security flaw was found in certain NETGEAR Orbi models that
could allow an unauthorized user to cause the device to stop responding or
restart unexpectedly, disrupting network connectivity and making the device
temporarily unavailable.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based buffer overflow
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://www.netgear.com/support/product/rbr860/ | productpatch |
| https://www.netgear.com/support/product/rbre950/ | productpatch |
| https://www.netgear.com/support/product/rbs860/ | productpatch |
| https://www.netgear.com/support/product/rbre960/ | productpatch |
| https://www.netgear.com/support/product/rbse950/ | productpatch |
| https://www.netgear.com/support/product/rbse960/ | productpatch |
| https://kb.netgear.com/000070859/July-2026-NETGEA… | vendor-advisory |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| NETGEAR | RBR860 |
Affected:
0 , < V7.2.7.15
(custom)
|
|
| NETGEAR | RBRE950 |
Affected:
0 , < v7.2.7.15
(custom)
|
|
| NETGEAR | RBRE960 |
Affected:
0 , < V7.2.7.15
(custom)
|
|
| NETGEAR | RBE970 |
Affected:
0 , < V9.10.1.4
(custom)
|
|
| NETGEAR | RBE971 |
Affected:
0 , < V9.10.1.4
(custom)
|
|
| NETGEAR | RBS860 |
Affected:
0 , < V7.2.7.15
(custom)
|
|
| NETGEAR | RBSE950 |
Affected:
0 , < v7.2.7.15
(custom)
|
|
| NETGEAR | RBSE960 |
Affected:
0 , < V7.2.7.15
(custom)
|
Date Public
2026-07-14 00:00
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CVE-2026-62349 (GCVE-0-2026-62349)
Vulnerability from cvelistv5 – Published: 2026-07-15 18:55 – Updated: 2026-07-15 19:37
VLAI
EPSS
VEX
Title
TDengine: Off-by-One Buffer Overflow
Summary
TDengine is an open source, time-series database optimized for Internet of Things devices. In 3.4.1.6 and earlier, source/libs/parser/src/parUtil.c trimString() checks space for only one byte before processing SQL string escape sequences \%, \_, or \x, allowing a one-byte out-of-bounds write to the stack buffer tmpTokenBuf that can cause denial of service and potentially remote code execution. This issue is fixed in version 3.4.1.14.
Severity
8.3 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/taosdata/TDengine/security/adv… | x_refsource_CONFIRM |
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CVE-2026-61486 (GCVE-0-2026-61486)
Vulnerability from cvelistv5 – Published: 2026-08-05 06:44 – Updated: 2026-08-05 15:44 Unsupported When Assigned
VLAI
EPSS
VEX
Title
Apache Lucy: stack-buffer-overflow in JSON parser error reporter on malformed input
Summary
** UNSUPPORTED WHEN ASSIGNED ** Stack-based Buffer Overflow vulnerability in Apache Lucy.
This issue affects Apache Lucy: all versions.
As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative or restrict access to the instance to trusted users.
NOTE: This vulnerability only affects products that are no longer supported by the maintainer.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Lucy |
Affected:
0 , ≤ *
(semver)
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CVE-2026-60095 (GCVE-0-2026-60095)
Vulnerability from cvelistv5 – Published: 2026-07-09 13:26 – Updated: 2026-07-09 13:37
VLAI
EPSS
VEX
Title
Vinchin Backup & Recovery 9.0.0.86562 Stack Buffer Overflow via ModuleHandShake
Summary
Vinchin Backup & Recovery through 9.0.0.86562 contains a stack buffer overflow vulnerability in the ModuleHandShake function of the agentlink_server service that allows unauthenticated remote attackers to overwrite the saved return address by supplying an oversized _listen_uuid field that is measured via strlen() and copied without bounds checking into a fixed-length stack buffer using strcpy(). Attackers can send a crafted request with a malicious _listen_uuid value to corrupt the stack and achieve process crash or potential control flow hijack without requiring authentication.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code-white.com/public-vulnerability-list/ | third-party-advisorytechnical-description |
| https://www.vinchin.com/news/vinchin-backup-recov… | product |
| https://www.vulncheck.com/advisories/vinchin-back… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Vinchin | Backup & Recovery 9.0 |
Affected:
0 , ≤ 9.0.0.86562
(custom)
|
Date Public
2026-07-08 00:00
Credits
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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.