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).

3361 vulnerabilities reference this CWE, most recent first.

CVE-2026-109833 (GCVE-0-2026-109833)

Vulnerability from cvelistv5 – Published: 2026-10-13 12:00 – Updated: 2026-11-05 16:19
VLAI
Title
Gnome-remote-desktop: heap buffer overflow in gnome-remote-desktop vnc tls peek buffer handling allows remote denial of service
Summary
A flaw was found in gnome-remote-desktop as shipped in Red Hat Enterprise Linux. In the VNC TLS read path, partial consumption of the internal peek buffer incorrectly moves remaining peeked bytes into the caller-supplied buffer instead of compacting the peek buffer. A remote attacker who can reach an enabled VNC TLS listener and trigger a peek/read size mismatch can cause an out-of-bounds write, leading to denial of service.
Severity
5.9 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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 2026-10-14 13:58 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
redhat CNA
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-109833 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2550367 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 10     cpe:/a:redhat:enterprise_linux:10
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Red Hat Red Hat Enterprise Linux 8     cpe:/a:redhat:enterprise_linux:8
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Red Hat Red Hat Enterprise Linux 9     cpe:/a:redhat:enterprise_linux:9
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Date Public
2026-10-12 00:00
Credits
Red Hat would like to thank Aisle Research for reporting this issue.
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CVE-2026-109800 (GCVE-0-2026-109800)

Vulnerability from cvelistv5 – Published: 2026-11-10 00:37 – Updated: 2026-11-10 00:37
VLAI
Title
Memory Corruption vulnerability in SAP Web Dispatcher
Summary
SAP Web Dispatcher does not sufficiently validate certain inputs during processing, which could lead to memory corruption. An attacker authenticated as a non-administrative user could exploit this vulnerability by providing specially crafted input, causing the Web Dispatcher process to terminate without user interaction. As a result, the Web Dispatcher and all backend systems reachable through it become unavailable, leading to a high impact on availability. There is no impact on confidentiality or integrity of the application.
Severity
7.7 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
sap CNA
References
Impacted products
Vendor Product Version
SAP_SE SAP Web Dispatcher Affected: KRNL64UC 7.53
Affected: WEBDISP 7.53
Affected: 7.54
Affected: 7.77
Affected: 7.93
Affected: 9.16
Affected: KERNEL 7.53
Affected: 9.20
Affected: 9.21
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CVE-2026-109793 (GCVE-0-2026-109793)

Vulnerability from cvelistv5 – Published: 2026-11-10 00:36 – Updated: 2026-11-10 00:36
VLAI
Title
Denial of Service (DoS) vulnerability in SAP NetWeaver Application Server ABAP (Internet Communication Manager) and SAP Web Dispatcher
Summary
SAP NetWeaver Application Server ABAP and SAP Web Dispatcher do not sufficiently validate certain header values processed during inbound request handling. An unauthenticated attacker could send a specially crafted request to cause the affected process to become unavailable.This results in a high impact on availability. There is no impact on confidentiality and integrity.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
sap CNA
References
Impacted products
Vendor Product Version
SAP_SE SAP NetWeaver Application Server ABAP (Internet Communication Manager) and SAP Web Dispatcher Affected: WEBDISP 9.16
Affected: KERNEL 9.16
Affected: 9.20
Affected: 9.21
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Show details on NVD website
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CVE-2026-109157 (GCVE-0-2026-109157)

Vulnerability from cvelistv5 – Published: 2026-10-13 10:45 – Updated: 2026-10-14 13:50 Unsupported When Assigned
VLAI
Title
TRENDnet TEW-432BRP formTcpipSetup stack-based overflow
Summary
A vulnerability was found in TRENDnet TEW-432BRP 3.10B20. Affected by this vulnerability is the function formTcpipSetup of the file /goform/formTcpipSetup. Performing a manipulation of the argument Name results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The vendor confirms: "As this router was EOL'd in 2011, we have no way of testing if such vulnerability exists. We will notify our customers of a potential vulnerability on this product." This vulnerability only affects products that are no longer supported by the maintainer.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
9.9 (Critical)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 13:50 UTC
CWE
Assigner
VulDB CNA
References
URL Tags
https://vuldb.com/vuln/416890 vdb-entrytechnical-description
https://vuldb.com/vuln/416890/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-109157 third-party-advisory
https://vuldb.com/submit/979590 third-party-advisory
https://github.com/wudipjq/my_vuln/blob/main/TREN… exploit
Impacted products
Vendor Product Version
TRENDnet TEW-432BRP Affected: 3.10B20
    cpe:2.3:o:trendnet:tew-432brp_firmware:*:*:*:*:*:*:*:*
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Credits
pjqwudi (VulDB User) VulDB CNA Team
Show details on NVD website
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CVE-2026-109109 (GCVE-0-2026-109109)

Vulnerability from cvelistv5 – Published: 2026-10-13 07:45 – Updated: 2026-10-14 13:39
VLAI
Title
Wavlink WL-WN530BE1-A Settings Export CGI ExportAllSettings.cgi strcpy stack-based overflow
Summary
A vulnerability was detected in Wavlink WL-WN530BE1-A 251117. This vulnerability affects the function strcpy of the file /cgi-bin/ExportAllSettings.cgi of the component Settings Export CGI. Performing a manipulation of the argument HTTP_COOKIE/X-Cmd results in stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure.
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/E:P
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C
10 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:C
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 13:38 UTC
CWE
Assigner
VulDB CNA
References
URL Tags
https://vuldb.com/vuln/416860 vdb-entrytechnical-description
https://vuldb.com/vuln/416860/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-109109 third-party-advisory
https://vuldb.com/submit/909191 third-party-advisory
https://gist.github.com/Rauzk/9ef4fe7574e5689386c… broken-linkexploit
Impacted products
Vendor Product Version
Wavlink WL-WN530BE1-A Affected: 251117
    cpe:2.3:a:wavlink:wl-wn530be1-a:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Tarbely (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-108984 (GCVE-0-2026-108984)

Vulnerability from cvelistv5 – Published: 2026-10-19 00:52 – Updated: 2026-10-20 18:41
VLAI
Title
GV-ASManager Web Server Buffer Overflow Vulnerability
Summary
A vulnerability is in Web Server default connection ports under the process name GeoWebServer.exe .
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-20 18:40 UTC
CWE
  • CWE-121 - Stack-based buffer overflow
Assigner
GV CNA
References
Impacted products
Vendor Product Version
GeoVision Inc. GV-ASManager Affected: 6.3.0
Unaffected: 6.4.0
    cpe:2.3:a:geovision_inc.:gv-asmanager:6.3.0:*:windows:*:*:*:*:*
Create a notification for this product.
Credits
Aleksandr Koshelev - https://www.linkedin.com/in/aleksandr-koshelev-30b34b171/ crowdfense - https://www.crowdfense.com/
Show details on NVD website
To clipboard 

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CVE-2026-108893 (GCVE-0-2026-108893)

Vulnerability from cvelistv5 – Published: 2026-10-12 13:45 – Updated: 2026-10-13 18:25
VLAI
Title
Linksys E1700 setVlan stack-based overflow
Summary
A vulnerability was identified in Linksys E1700 up to 1.0.0.4.003. This issue affects the function setVlan of the file /goform/setVlan. Such manipulation of the argument vlan_set leads to stack-based buffer overflow. The attack may be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
9.4 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
9.9 (Critical)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 18:24 UTC
CWE
Assigner
VulDB CNA
References
Impacted products
Vendor Product Version
Linksys E1700 Affected: 1.0.0.4.003
    cpe:2.3:o:linksys:e1700_firmware:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
pjqwudi (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-108892 (GCVE-0-2026-108892)

Vulnerability from cvelistv5 – Published: 2026-10-12 13:30 – Updated: 2026-10-15 15:15
VLAI
Title
Linksys E1700 Mac Filter ssid1MACFilter stack-based overflow
Summary
A vulnerability was determined in Linksys E1700 1.0.0.4.003. This vulnerability affects the function ssid1MACFilter of the file /goform/ssid1MACFilter of the component Mac Filter. This manipulation of the argument newap_text_%d causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
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/E:P
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
10 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 14:53 UTC
CWE
Assigner
VulDB CNA
References
Impacted products
Vendor Product Version
Linksys E1700 Affected: 1.0.0.4.003
    cpe:2.3:o:linksys:e1700_firmware:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
pjqwudi (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-108445 (GCVE-0-2026-108445)

Vulnerability from cvelistv5 – Published: 2026-10-15 20:57 – Updated: 2026-10-31 18:01
VLAI
Title
Microsoft Office Word Remote Code Execution Vulnerability
Summary
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 00:00 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
microsoft CNA
References
Impacted products
Vendor Product Version
Microsoft Microsoft 365 Apps for Enterprise Affected: 16.0.1 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office 365 for Mac Affected: 1.0.0 , < 16.114.26101123 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC 2021 Affected: 16.0.1 , < 16.0.14334.20974 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC 2024 Affected: 16.0.0 , < 16.0.17932.21056 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC for Mac 2021 Affected: 16.0.1 , < 16.114.26101123 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC for Mac 2024 Affected: 16.0.0 , < 16.114.26101123 (custom)
Create a notification for this product.
Date Public
2026-10-15 14:00
Show details on NVD website
To clipboard 

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CVE-2026-108440 (GCVE-0-2026-108440)

Vulnerability from cvelistv5 – Published: 2026-10-15 20:57 – Updated: 2026-10-31 18:01
VLAI
Title
Microsoft Office Word Remote Code Execution Vulnerability
Summary
Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 00:00 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
microsoft CNA
References
Impacted products
Vendor Product Version
Microsoft Microsoft 365 Apps for Enterprise Affected: 16.0.1 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office 365 for Mac Affected: 1.0.0 , < 16.114.26101123 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC 2021 Affected: 16.0.1 , < 16.0.14334.20974 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC 2024 Affected: 16.0.0 , < 16.0.17932.21056 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC for Mac 2021 Affected: 16.0.1 , < 16.114.26101123 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC for Mac 2024 Affected: 16.0.0 , < 16.114.26101123 (custom)
Create a notification for this product.
Date Public
2026-10-15 14:00
Show details on NVD website
To clipboard 

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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:office_macos_2024:*:*:*:*:*:long_term_servicing_channel:*:*",
                  "versionEndExcluding": "16.114.26101123",
                  "versionStartIncluding": "16.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:office_365:*:*:*:*:*:macos:*:*",
                  "versionEndExcluding": "16.114.26101123",
                  "versionStartIncluding": "1.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:office_2021:*:*:*:*:long_term_servicing_channel:*:*:*",
                  "versionEndExcluding": "16.0.14334.20974",
                  "versionStartIncluding": "16.0.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:office_2024:*:*:*:*:long_term_servicing_channel:*:*:*",
                  "versionEndExcluding": "16.0.17932.21056",
                  "versionStartIncluding": "16.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:microsoft:365_apps:*:*:*:*:enterprise:*:*:*",
                  "versionEndExcluding": "https://aka.ms/OfficeSecurityReleases",
                  "versionStartIncluding": "16.0.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "datePublic": "2026-10-15T14:00:00.000Z",
      "descriptions": [
        {
          "lang": "en-US",
          "value": "Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en-US",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-121",
              "description": "CWE-121: Stack-based Buffer Overflow",
              "lang": "en-US",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-31T18:01:02.474Z",
        "orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
        "shortName": "microsoft"
      },
      "references": [
        {
          "name": "Microsoft Office Word Remote Code Execution Vulnerability",
          "tags": [
            "vendor-advisory",
            "patch"
          ],
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-108440"
        }
      ],
      "title": "Microsoft Office Word Remote Code Execution Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
    "assignerShortName": "microsoft",
    "cveId": "CVE-2026-108440",
    "datePublished": "2026-10-15T20:57:23.936Z",
    "dateReserved": "2026-10-09T21:52:56.478Z",
    "dateUpdated": "2026-10-31T18:01:02.474Z",
    "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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