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).

3363 vulnerabilities reference this CWE, most recent first.

CVE-2026-18589 (GCVE-0-2026-18589)

Vulnerability from cvelistv5 – Published: 2026-08-03 06:30 – Updated: 2026-08-03 19:59
VLAI
Title
Wavlink WL-NU516U1 nas.cgi change_password stack-based overflow
Summary
A vulnerability was found in Wavlink WL-NU516U1 708c073-mt7628. This impacts the function change_password of the file nas.cgi. The manipulation of the argument User1Passwd results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been made public and could be used. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 19:59 UTC
CWE
Assigner
VulDB CNA
References
Impacted products
Vendor Product Version
Wavlink WL-NU516U1 Affected: 708c073-mt7628
    cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
oduoke (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-18588 (GCVE-0-2026-18588)

Vulnerability from cvelistv5 – Published: 2026-08-03 06:00 – Updated: 2026-08-03 15:03
VLAI
Title
Wavlink WL-NU516U1 nas.cgi fgets stack-based overflow
Summary
A vulnerability has been found in Wavlink WL-NU516U1 708c073-mt7628. This affects the function fgets of the file nas.cgi. The manipulation of the argument CONTENT_LENGTH leads to stack-based buffer overflow. Remote exploitation of the attack is possible. You should upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:O/RC:C
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:O/RC:C
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 14:59 UTC
CWE
Assigner
VulDB CNA
References
Impacted products
Vendor Product Version
Wavlink WL-NU516U1 Affected: 708c073-mt7628
    cpe:2.3:o:wavlink:wl-nu516u1_firmware:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
oduoke (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-18303 (GCVE-0-2026-18303)

Vulnerability from cvelistv5 – Published: 2026-08-20 16:23 – Updated: 2026-08-27 16:24
VLAI
Title
GIMP TIF File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability
Summary
GIMP TIF File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of TIF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29399.
Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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 2026-08-21 03:57 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
zdi CNA
References
Impacted products
Vendor Product Version
GIMP GIMP Affected: 3.2.2
Create a notification for this product.
Date Public
2026-07-29 21:28
Show details on NVD website
To clipboard 

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CVE-2026-18297 (GCVE-0-2026-18297)

Vulnerability from cvelistv5 – Published: 2026-08-20 16:22 – Updated: 2026-08-27 16:24
VLAI
Title
GStreamer OGG File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability
Summary
GStreamer OGG File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of OGG files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-29584.
Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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 2026-08-21 03:57 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
zdi CNA
References
Impacted products
Vendor Product Version
GStreamer GStreamer Affected: e3d33ecb5765f11c85b5ba739a0f1cf2bea81abe
Create a notification for this product.
Date Public
2026-07-29 21:29
Show details on NVD website
To clipboard 

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CVE-2026-18167 (GCVE-0-2026-18167)

Vulnerability from cvelistv5 – Published: 2026-09-03 22:24 – Updated: 2026-09-04 18:25
VLAI
Title
Stack-based buffer overflow in TP-Link Archer AX55 v4
Summary
A stack-based buffer overflow vulnerability exists in the EasyMesh module of TP-Link Archer AX55 v4. When Mesh mode is enabled, a LAN attacker may submit crafted input that causes the easymesh daemon to crash and may potentially achieve remote code execution on the device. Successful exploitation may cause the EasyMesh daemon to crash and may potentially allow remote code execution when Mesh mode is enabled. This may result in high impact to the confidentiality, integrity, and availability of the affected device.
Severity
7.7 (High)
CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 17:09 UTC
CWE
  • CWE-121 - Stack-based buffer overflow
Assigner
TPLink CNA
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. Archer AX55 v4 Affected: 0 , < 1.2.1 Build 20260527 (custom)
Create a notification for this product.
Credits
Tianchang Yang and Syed Rafiul Hussain (SyNSec Lab, Penn State University)
Show details on NVD website
To clipboard 

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CVE-2026-18145 (GCVE-0-2026-18145)

Vulnerability from cvelistv5 – Published: 2026-09-29 23:05 – Updated: 2026-10-01 03:55
VLAI
Title
Fireware OS Stack-based Buffer Overflow in spamd Allows Remote Code Execution
Summary
A stack-based buffer overflow vulnerability in the spamBlocker (spamd) service of WatchGuard Fireware OS allows an authenticated attacker with administrator privileges to crash the service or potentially execute arbitrary code by sending a specially crafted management request.
Severity
8.6 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/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 2026-09-30 00:00 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
WatchGuard Fireware OS Affected: 2026.3 , < 2026.3.2 (custom)
Affected: 2025.0 , < 2026.2.3 (custom)
Affected: 12.0 , < 12.12.3 (custom)
Create a notification for this product.
WatchGuard Fireware OS Affected: 12.0 , < 12.5.21 (custom)
Create a notification for this product.
Credits
Nicholas Zubrisky (@NZubrisky) of TrendAI Research
Show details on NVD website
To clipboard 

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CVE-2026-17518 (GCVE-0-2026-17518)

Vulnerability from cvelistv5 – Published: 2026-10-20 02:00 – Updated: 2026-10-20 19:17
VLAI
Summary
Buffer Copy without Checking Size of Input in certain ASUS router models allows an adjacent authenticated user to corrupt device operations and cause a denial of service via an HTTP request with input exceeding the expected length. Refer to the ' Security Update for ASUS Router Firmware' section on the ASUS Security Advisory for more information.
Severity
8.2 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 19:17 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
ASUS CNA
References
Impacted products
Vendor Product Version
ASUS Router Affected: ASUSWRT 3.0.0.4_386 series (custom)
Affected: ASUSWRT 3.0.0.4_388 series
    cpe:2.3:a:asus:router:asuswrt_3.0.0.4_386_series:*:*:*:*:*:*:*
    cpe:2.3:a:asus:router:asuswrt_3.0.0.4_388_series:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-17494 (GCVE-0-2026-17494)

Vulnerability from cvelistv5 – Published: 2026-08-19 18:42 – Updated: 2026-08-22 03:56
VLAI
Title
Power System Buffer Overflow
Summary
IBM Power Systems Firmware FW1120.00, and FW1110.00 through FW1110.30 is affected by a vulnerability in the interface between the BMC and the host system. An attacker with service access to the BMC can send a specially crafted command, allowing arbitrary code to be executed on the host system, giving full control over the host system and all hosted partitions, resulting in a confidentiality, integrity, and availability impact.
Severity
8.2 (High)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 00:00 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
ibm CNA
References
URL Tags
https://www.ibm.com/support/pages/node/7283220 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM Power Systems Firmware Affected: FW1120.00
Affected: FW1110.00 , ≤ FW1110.30 (semver)
    cpe:2.3:o:ibm:power_systems_firmware:fw1120.00:*:*:*:*:*:*:*
    cpe:2.3:o:ibm:power_systems_firmware:fw1110.00:*:*:*:*:*:*:*
    cpe:2.3:o:ibm:power_systems_firmware:fw1110.30:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-17401 (GCVE-0-2026-17401)

Vulnerability from cvelistv5 – Published: 2026-11-07 04:34 – Updated: 2026-11-09 15:09
VLAI
Title
Multiple Vulnerabilities in IBM API Connect
Summary
IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to execute arbitrary code due to a stack-based buffer overflow.
Severity
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/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 2026-11-09 04:55 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
ibm CNA
References
Impacted products
Vendor Product Version
IBM API Connect Affected: 12.1.0.0 , ≤ 12.1.1.2 (semver)
Affected: 10.0.8.0 , ≤ 10.0.8.12 (semver)
    cpe:2.3:a:ibm:api_connect:12.1.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:api_connect:12.1.1.2:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:api_connect:10.0.8.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:api_connect:10.0.8.12:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
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CVE-2026-17270 (GCVE-0-2026-17270)

Vulnerability from cvelistv5 – Published: 2026-09-04 16:38 – Updated: 2026-09-10 21:00
VLAI
Title
IBM i is Affected By Multiple Vulnerabilities in Debug Server
Summary
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a local attacker to cause a denial of service due to a stack-based buffer overflow.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 20:37 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
ibm CNA
References
URL Tags
https://www.ibm.com/support/pages/node/7285844 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM i Affected: 7.6
Affected: 7.5
Affected: 7.4
Affected: 7.3
    cpe:2.3:a:ibm:i:7.6:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.6.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.5:*:*:*:*:*:*:*
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    cpe:2.3:a:ibm:i:7.4:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.4.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.3:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:i:7.3.0:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website
To clipboard 

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            "patch"
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          "url": "https://www.ibm.com/support/pages/node/7285844"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003e\u003ctable\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003ccol/\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003cthead\u003e\u003ctr\u003e\u003ctd\u003e\u003cstrong\u003eIBM i Release\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003e5770-SS1\u003cbr/\u003ePTF Number(s)\u003c/strong\u003e\u003c/td\u003e\u003ctd\u003e\u003cstrong\u003ePTF Download Link(s)\u003c/strong\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd\u003e7.6\u003c/td\u003e\u003ctd\u003eSJ11305\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11305\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11305\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.5\u003c/td\u003e\u003ctd\u003eSJ11306\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11306\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11306\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.4\u003c/td\u003e\u003ctd\u003eSJ11307\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11307\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11307\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd\u003e7.3\u003c/td\u003e\u003ctd\u003eSJ11308\u003c/td\u003e\u003ctd\u003e\u003ca href=\"https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11308\" rel=\"nofollow\"\u003ehttps://www.ibm.com/mysupport/s/fix-information?legacy=SJ11308\u003c/a\u003e\u003c/td\u003e\u003c/tr\u003e\u003c/tbody\u003e\u003c/table\u003e\u003c/div\u003e\u003cp\u003eIBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products.\u003c/p\u003e"
            }
          ],
          "value": "IBM i Release5770-SS1\nPTF Number(s)PTF Download Link(s)7.6SJ11305 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11305 7.5SJ11306 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11306 7.4SJ11307 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11307 7.3SJ11308 https://www.ibm.com/mysupport/s/fix-information?legacy=SJ11308 \n\n\n\nIBM recommends users running unsupported versions of affected products upgrade to a supported and fixed version of affected products."
        }
      ],
      "title": "IBM i is Affected By Multiple Vulnerabilities in Debug Server"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
    "assignerShortName": "ibm",
    "cveId": "CVE-2026-17270",
    "datePublished": "2026-09-04T16:38:38.316Z",
    "dateReserved": "2026-07-24T23:19:32.306Z",
    "dateUpdated": "2026-09-10T21:00:33.916Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
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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