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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).

5640 vulnerabilities reference this CWE, most recent first.

CVE-2026-7851 (GCVE-0-2026-7851)

Vulnerability from cvelistv5 – Published: 2026-05-05 17:30 – Updated: 2026-05-06 12:45
VLAI
Title
D-Link DI-8100 yyxz.asp sprintf stack-based overflow
Summary
A vulnerability was identified in D-Link DI-8100 16.07.26A1. This affects the function sprintf of the file yyxz.asp. The manipulation of the argument ID leads to stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit is publicly available and might be used.
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/E:P
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
7.2 (High)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/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 2026-05-06 12:44 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/361128 vdb-entrytechnical-description
https://vuldb.com/vuln/361128/cti signaturepermissions-required
https://vuldb.com/submit/807798 third-party-advisory
https://github.com/draw-ctf/report/blob/main/DI-8… exploit
https://www.dlink.com/ product
Impacted products
Vendor Product Version
D-Link DI-8100 Affected: 16.07.26A1
Create a notification for this product.
Credits
draw (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-7834 (GCVE-0-2026-7834)

Vulnerability from cvelistv5 – Published: 2026-05-05 13:45 – Updated: 2026-05-05 15:02
VLAI
Title
EFM ipTIME NAS1dual misc_main.cgi get_csrf_whites stack-based overflow
Summary
A security vulnerability has been detected in EFM ipTIME NAS1dual 1.5.24. This issue affects the function get_csrf_whites of the file /cgi/advanced/misc_main.cgi. Such manipulation leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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:X/RC:R
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:X/RC:R
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-05 15:02 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/361113 vdb-entrytechnical-description
https://vuldb.com/vuln/361113/cti signaturepermissions-required
https://vuldb.com/submit/807787 third-party-advisory
https://github.com/glkfc/IoT-Vulnerability/blob/m… exploit
Impacted products
Vendor Product Version
EFM ipTIME NAS1dual Affected: 1.5.24
Create a notification for this product.
Credits
jfkk (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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CVE-2026-7546 (GCVE-0-2026-7546)

Vulnerability from cvelistv5 – Published: 2026-05-01 02:15 – Updated: 2026-05-01 21:28
VLAI
Title
Totolink NR1800X lighttpd find_host_ip stack-based overflow
Summary
A security vulnerability has been detected in Totolink NR1800X 9.1.0u.6279_B20210910. The impacted element is the function find_host_ip of the component lighttpd. Such manipulation of the argument Host leads to stack-based buffer overflow. The attack can be executed remotely. The exploit has been disclosed publicly and may be used.
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:W/RC:R
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:W/RC:R
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-01 21:28 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Totolink NR1800X Affected: 9.1.0u.6279_B20210910
    cpe:2.3:o:totolink:nr1800x_firmware:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
NEWYM (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-7470 (GCVE-0-2026-7470)

Vulnerability from cvelistv5 – Published: 2026-04-30 02:30 – Updated: 2026-05-04 13:22
VLAI
Title
Tenda 4G300 SafeMacFilter sub_427C3C stack-based overflow
Summary
A flaw has been found in Tenda 4G300 US_4G300V1.0Mt_V1.01.42_CN_TDC01. Affected is the function sub_427C3C of the file /goform/SafeMacFilter. This manipulation of the argument page causes stack-based buffer overflow. Remote exploitation of the attack is possible. The exploit has been published and may be used.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-04 13:22 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/360206 vdb-entrytechnical-description
https://vuldb.com/vuln/360206/cti signaturepermissions-required
https://vuldb.com/submit/804269 third-party-advisory
https://github.com/Axelioc/CVE/blob/main/Tenda/US… broken-linkexploit
https://www.tenda.com.cn/ product
Impacted products
Vendor Product Version
Tenda 4G300 Affected: US_4G300V1.0Mt_V1.01.42_CN_TDC01
    cpe:2.3:o:tenda:4g300_firmware:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Haaalion (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-7273 (GCVE-0-2026-7273)

Vulnerability from cvelistv5 – Published: 2026-06-16 02:20 – Updated: 2026-06-18 03:55
VLAI
Summary
A stack-based buffer overflow vulnerability in the CGI program of Zyxel GS1900-48HPv2 firmware versions through 2.90(ABTQ.1)C0 could allow a LAN-based, unauthenticated attacker to exploit the flaw and potentially execute OS commands via a crafted HTTP request.
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/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 2026-06-17 00:00 UTC
CWE
  • CWE-121 - Stack-based buffer overflow
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-7260 (GCVE-0-2026-7260)

Vulnerability from cvelistv5 – Published: 2026-07-30 11:22 – Updated: 2026-07-30 12:15
VLAI
Title
Stack overflow in phar with circular symlinks
Summary
Circular symbolic links in phar archives could lead to unbounded recursion, exhausting the C stack and crashing the PHP process, in PHP versions from 8.2.* before 8.2.33, from 8.3.* before 8.3.33, from 8.4.* before 8.4.24, and from 8.5.* before 8.5.9.
Severity
5.4 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 12:15 UTC
CWE
  • CWE-121 - Stack-based buffer overflow
Assigner
References
Impacted products
Vendor Product Version
PHP Group PHP Affected: 8.2.* , < 8.2.33 (semver)
Affected: 8.3.* , < 8.3.33 (semver)
Affected: 8.4.* , < 8.4.24 (semver)
Affected: 8.5.* , < 8.5.9 (semver)
Create a notification for this product.
Credits
Calvin Young - eWalker Consulting (HK) Limited Enoch Chow - Isomorph Cyber Jakub Zelenka - The PHP Foundation
Show details on NVD website
To clipboard 

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CVE-2026-7151 (GCVE-0-2026-7151)

Vulnerability from cvelistv5 – Published: 2026-04-27 19:15 – Updated: 2026-04-29 13:58
VLAI
Title
Tenda HG3 formIPv6Routing formUploadConfig stack-based overflow
Summary
A vulnerability was determined in Tenda HG3 2.0. Impacted is the function formUploadConfig of the file /boaform/formIPv6Routing. This manipulation of the argument destNet causes stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/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 2026-04-29 13:58 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Tenda HG3 Affected: 2.0
Create a notification for this product.
Credits
2er00ne (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-7035 (GCVE-0-2026-7035)

Vulnerability from cvelistv5 – Published: 2026-04-26 11:15 – Updated: 2026-04-27 13:10
VLAI
Title
Tenda FH1202 httpd WrlclientSet fromWrlclientSet stack-based overflow
Summary
A vulnerability was determined in Tenda FH1202 1.2.0.14. This affects the function fromWrlclientSet of the file /goform/WrlclientSet of the component httpd. Executing a manipulation of the argument Go can lead to stack-based buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/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 2026-04-27 13:10 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Tenda FH1202 Affected: 1.2.0.14
    cpe:2.3:o:tenda:fh1202_firmware:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
LtzHuster (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-7034 (GCVE-0-2026-7034)

Vulnerability from cvelistv5 – Published: 2026-04-26 11:00 – Updated: 2026-04-27 12:47
VLAI
Title
Tenda FH1202 httpd WrlExtraSet stack-based overflow
Summary
A vulnerability was found in Tenda FH1202 1.2.0.14(408). Affected by this issue is the function WrlExtraSet of the file /goform/WrlExtraSet of the component httpd. Performing a manipulation of the argument Go results in stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made public and could be used.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/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 2026-04-27 12:47 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
Tenda FH1202 Affected: 1.2.0.14(408)
    cpe:2.3:o:tenda:fh1202_firmware:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
LtzHuster (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-6868 (GCVE-0-2026-6868)

Vulnerability from cvelistv5 – Published: 2026-04-30 05:04 – Updated: 2026-04-30 15:20
VLAI
Title
Stack-based Buffer Overflow in Wireshark
Summary
HTTP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service
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 2026-04-30 14:53 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Wireshark Foundation Wireshark Affected: 4.6.0 , < 4.6.5 (semver)
Affected: 4.4.0 , < 4.4.15 (semver)
Create a notification for this product.
Credits
Sharon Brizinov
Show details on NVD website
To clipboard 

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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Wireshark",
          "vendor": "Wireshark Foundation",
          "versions": [
            {
              "lessThan": "4.6.5",
              "status": "affected",
              "version": "4.6.0",
              "versionType": "semver"
            },
            {
              "lessThan": "4.4.15",
              "status": "affected",
              "version": "4.4.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Sharon Brizinov"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "HTTP protocol dissector crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-121",
              "description": "CWE-121: Stack-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-30T05:04:30.622Z",
        "orgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
        "shortName": "GitLab"
      },
      "references": [
        {
          "url": "https://www.wireshark.org/security/wnpa-sec-2026-46.html"
        },
        {
          "url": "https://gitlab.com/wireshark/wireshark/-/work_items/21185"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Upgrade to version 4.6.5 or above"
        }
      ],
      "title": "Stack-based Buffer Overflow in Wireshark"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ceab7361-8a18-47b1-92ba-4d7d25f6715a",
    "assignerShortName": "GitLab",
    "cveId": "CVE-2026-6868",
    "datePublished": "2026-04-30T05:04:30.622Z",
    "dateReserved": "2026-04-22T16:29:24.754Z",
    "dateUpdated": "2026-04-30T15:20:49.496Z",
    "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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