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No exploitation reported

CVE-2026-129453

DrayTek Vigor2960 File Existence Check mainfunction.cgi check_file_exist heap-based overflow

No exploitation reported by the sources we read.

  • Published2026-11-15
  • WeaknessCWE-119 · CWE-122

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A vulnerability was found in DrayTek Vigor2960 1.5.1.6. This issue affects the function check_file_exist of the file /cgi-bin/mainfunction.cgi of the component File Existence Check. Performing a manipulation of the argument upload_name results in heap-based buffer overflow. The attack may be initiated remotely. The exploit has been made public and could be used. Upgrading to version 1.5.1.7 is capable of addressing this issue. Upgrading the affected component is recommended. The vendor recommends: "1.5.1.6 isn't the latest version of 2960, the latest version fixes many security issues. And we have another one in our release plan which should solve the issues reported."

Timeline

dates in UTC
  1. 2026-11-1513:30CVE publishedCNA

Versions per branch

Products declared by the CNA

As VulDB, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • DrayTek Vigor2960
    Affected
    • = 1.5.1.6no fix stated

    Not affected = 1.5.1.7

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-15

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-129453 yet.

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

Sources

  • CNACVSS 4.09.42026-11-15
  • CNACVSS 3.19.92026-11-15
  • NVDCVSS 3.19.9read 2026-11-15
  • CNACVSS 3.09.92026-11-15
  • CNACVSS 2.092026-11-15
  • CNAweakness (CWE)CWE-119, CWE-1222026-11-15
  • NVDweakness (CWE)CWE-119, CWE-122read 2026-11-15
  • GitHub Advisoriesadvisory—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS 4.0 vector
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2026-11-15
Last Modified
2026-11-15
NVD status
Deferred
GitHub Advisory
GHSA-55c6-c9v3-fgjf

Frequently asked questions

What is CVE-2026-129453?

A vulnerability was found in DrayTek Vigor2960 1.5.1.6. This issue affects the function check_file_exist of the file /cgi-bin/mainfunction.cgi of the component File Existence Check. Performing a manipulation of the argument upload_name results in heap-based buffer overflow. The attack may be initiated remotely. The exploit has been made public and could be used. Upgrading to version 1.5.1.7 is capable of addressing this issue. Upgrading the affected component is recommended. The vendor recommends: "1.5.1.6 isn't the latest version of 2960, the latest version fixes many security issues. And we have another one in our release plan which should solve the issues reported."

Is CVE-2026-129453 actively exploited?

Active exploitation of CVE-2026-129453 has not been confirmed.

What is the CVSS score for CVE-2026-129453?

CVE-2026-129453 has a CVSS v3 base score of 9.9 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.

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