Common Weakness Enumeration

CWE-121

Allowed

Stack-based Buffer Overflow

Abstraction: Variant · Status: Draft

API response cwe.mitre.org

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).

6108 vulnerabilities reference this CWE, most recent first.

CVE-2026-44056 (GCVE-0-2026-44056)

Vulnerability from cvelistv5 – Published: 2026-05-21 07:34 – Updated: 2026-05-21 12:28
VLAI
Title
Stack buffer overflow in desktop.c
Summary
A stack-based buffer overflow in desktop.c in Netatalk 1.3 through 4.2.2 allows a remote authenticated attacker to cause a denial of service, obtain limited information, or modify limited data.
Severity
6 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-21 12:28 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
securin CNA under the mitre root
CNA scorecard B 80/100 over 71 records in the last 180 days details
References
Impacted products
Vendor Product Version
Netatalk Netatalk Affected: 1.3 , ≤ 4.2.2 (semver)
Unaffected: 4.5.0 (semver)
Create a notification for this product.
Date Public
2026-05-13 00:00
Credits
Arjun Basnet from Securin
Show details on NVD website
To clipboard 

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CVE-2026-44048 (GCVE-0-2026-44048)

Vulnerability from cvelistv5 – Published: 2026-05-21 07:34 – Updated: 2026-05-22 03:56
VLAI
Title
Stack buffer overflow via UCS-2 type confusion in convert_charset()
Summary
A stack-based buffer overflow via UCS-2 type confusion in convert_charset() in Netatalk 2.0.4 through 4.4.2 allows a remote authenticated attacker to execute arbitrary code or cause a denial of service.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-21 00:00 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
securin CNA under the mitre root
CNA scorecard B 80/100 over 71 records in the last 180 days details
References
Impacted products
Vendor Product Version
Netatalk Netatalk Affected: 2.0.4 , ≤ 4.4.2 (semver)
Unaffected: 4.4.3 (semver)
Create a notification for this product.
Date Public
2026-05-13 00:00
Credits
Arjun Basnet from Securin
Show details on NVD website
To clipboard 

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CVE-2026-43958 (GCVE-0-2026-43958)

Vulnerability from cvelistv5 – Published: 2026-06-01 17:34 – Updated: 2026-09-28 03:30
VLAI
Title
Rrdtool: rrdtool: stack buffer overflow allows local code execution or denial of service
Summary
A flaw was found in rrdcached, a component of rrdtool. A local attacker with access to a rrdcached socket can exploit a stack-based buffer overflow by sending an oversized CREATE request. This vulnerability can lead to a denial of service by crashing the daemon or potentially allow for arbitrary code execution, impacting the integrity and confidentiality of data.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-02 15:36 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1039 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:33731 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:34155 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:34156 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:68702 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:71600 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:72277 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:72278 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-43958 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2460932 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:1.8.0-21.el10_2 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.2
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:1.8.0-20.el10_0.1 , < * (rpm)
    cpe:/o:redhat:enterprise_linux_eus:10.0
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.7.0-17.el8_10 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
    cpe:/a:redhat:enterprise_linux:8::crb
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.7.2-22.el9_8 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
    cpe:/a:redhat:enterprise_linux:9::crb
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.7.2-21.el9_2.1 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:9.2::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Unaffected: 0:1.7.2-21.el9_4.1 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:9.4::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.7.2-21.el9_6.1 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.6::appstream
    cpe:/a:redhat:rhel_eus:9.6::crb
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Date Public
2026-06-01 17:04
Credits
Red Hat would like to thank AISLE Research for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2026-43623 (GCVE-0-2026-43623)

Vulnerability from cvelistv5 – Published: 2026-06-01 18:04 – Updated: 2026-07-14 20:01 X_Open Source Unsupported When Assigned
VLAI
Title
microtar 0.1.0 Stack-Based Buffer Overflow via raw_to_header()
Summary
microtar through 0.1.0 contains a stack-based buffer overflow vulnerability in the raw_to_header() function in src/microtar.c that allows attackers to corrupt adjacent stack memory by supplying a crafted TAR archive with non-null-terminated name or linkname fields. The function uses strcpy() to copy 100-byte ustar format fields that lack null terminators, causing writes of up to 355 bytes into a 100-byte destination buffer when mtar_open(), mtar_find(), or mtar_read_header() process attacker-supplied TAR archives.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-02 15:38 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6697 records in the last 180 days details
References
Impacted products
Vendor Product Version
rxi microtar Affected: 0 , ≤ 0.1.0 (semver)
Create a notification for this product.
Date Public
2026-02-16 00:00
Credits
Byambadalai Sumiya (@ByamB4) Saidakbarxon Maxsudxonov mms (@3291710458)
Show details on NVD website
To clipboard 

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CVE-2026-42996 (GCVE-0-2026-42996)

Vulnerability from cvelistv5 – Published: 2026-05-01 06:42 – Updated: 2026-05-01 22:10
VLAI
Summary
JS8Call through 2.3.1 and JS8Call-improved before 3.0 have a stack-based buffer overflow via a radio transmission of @APRSIS GRID followed by a long Maidenhead locator. This occurs in grid2deg in APRSISClient.cpp.
Severity
10 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:Y/R:U/V:D/RE:M/U:Green
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-01 13:24 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
mitre CNA under the mitre root
CNA scorecard E 29/100 over 2354 records in the last 180 days details
References
Impacted products
Vendor Product Version
JS8Call JS8Call Affected: 0 , ≤ 2.3.1 (semver)
Create a notification for this product.
JS8Call-improved JS8Call-improved Affected: 0 , < 3.0 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-42919 (GCVE-0-2026-42919)

Vulnerability from cvelistv5 – Published: 2026-05-13 14:12 – Updated: 2026-05-14 03:56
VLAI
Title
F5 BIG-IP Appliance Mode Vulnerability
Summary
A vulnerability exists in BIG-IP systems that may allow an authenticated attacker with administrative access to escalate their privileges. A successful exploit may allow the attacker to cross a security boundary.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Severity
6.7 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 00:00 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
f5 CNA under the mitre root
CNA scorecard B 84/100 over 87 records in the last 180 days details
References
URL Tags
https://my.f5.com/manage/s/article/K000158971 vendor-advisorypatch
Impacted products
Vendor Product Version
F5 BIG-IP Unaffected: 21.1.0 , < * (custom)
Affected: 21.0.0 , < 21.0.0.1 (custom)
Affected: 17.5.0 , < 17.5.1.4 (custom)
Affected: 17.1.0 , < 17.1.3.1 (custom)
Affected: 16.1.0 , < * (custom)
Create a notification for this product.
Date Public
2026-05-13 14:00
Credits
F5
Show details on NVD website
To clipboard 

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}

CVE-2026-42854 (GCVE-0-2026-42854)

Vulnerability from cvelistv5 – Published: 2026-05-12 21:56 – Updated: 2026-05-13 14:24
VLAI
Title
arduino-esp32: Stack buffer overflow in WebServer multipart boundary parsing leads to remote crash potential RCE
Summary
arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, the WebServer multipart form parser in arduino-esp32 allocates a Variable Length Array (VLA) on the stack whose size is derived from an attacker-controlled HTTP header field (Content-Type: multipart/form-data; boundary=...) without enforcing any length limit. Sending a boundary string longer than ~8000 characters overflows the 8192-byte task stack of the loopTask, causing a crash and potential remote code execution. This vulnerability is fixed in 3.3.8.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 14:24 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7634 records in the last 180 days details
References
Impacted products
Vendor Product Version
espressif arduino-esp32 Affected: < 3.3.8
Create a notification for this product.
Show details on NVD website
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CVE-2026-42050 (GCVE-0-2026-42050)

Vulnerability from cvelistv5 – Published: 2026-05-11 19:46 – Updated: 2026-05-12 13:30
VLAI
Title
ImageMagick: Stack buffer overflow in XTileImage
Summary
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-21 and 6.9.13-46, a malicious MIFF file could trigger an overflow when a user opens it in the display tool and right-clicks a tile to invoke the Load / Update menu item. This vulnerability is fixed in 7.1.2-21 and 6.9.13-46.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-12 13:30 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7634 records in the last 180 days details
References
Impacted products
Vendor Product Version
ImageMagick ImageMagick Affected: < 6.9.13-46
Affected: >= 7.0.0, < 7.1.2-20
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-42026 (GCVE-0-2026-42026)

Vulnerability from cvelistv5 – Published: 2026-10-20 20:25 – Updated: 2026-10-20 20:25
VLAI
Summary
Multiple exploitable stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup dhcp_dns functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities. This vulnerability concerns the dhcp_dns2 parameter.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
talos CNA under the mitre root
CNA scorecard C 61/100 over 38 records in the last 180 days details
References
Impacted products
Vendor Product Version
totolink Totolink Affected: TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327
Create a notification for this product.
Credits
Discovered by Lilith Wyatt of Cisco Talos
Show details on NVD website
To clipboard 

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CVE-2026-42025 (GCVE-0-2026-42025)

Vulnerability from cvelistv5 – Published: 2026-10-20 20:25 – Updated: 2026-10-20 20:25
VLAI
Summary
Multiple exploitable stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup dhcp_dns functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities. This vulnerability concerns the dhcp_dns1 parameter.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
talos CNA under the mitre root
CNA scorecard C 61/100 over 38 records in the last 180 days details
References
Impacted products
Vendor Product Version
totolink Totolink Affected: TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327
Create a notification for this product.
Credits
Discovered by Lilith Wyatt of Cisco Talos
Show details on NVD website
To clipboard 

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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.

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