Answer in brief
CVE-2026-129453 records a Critical severity (CVSS 9.4) vulnerability in DrayTek Vigor2960 File Existence Check mainfunction.cgi check_file_exist heap-based overflow. The current sources do not mark it as known exploited. The current feed maps DrayTek/Vigor2960 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 9.4. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps DrayTek/Vigor2960 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| DrayTek/Vigor2960generic | 1.5.1.6 | Not reported |
Published upstream
Nov 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 15, 2026
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."
Quoted source text, attributed separately from HOL analysis.