---
id: CVE-2026-113390
title: DrayTek Vigor2960 CGI mainfunction.cgi sub_182B0 os command injection
summary: >-
  A flaw has been found in DrayTek Vigor2960 1.5.1.6 Revision 8218. Affected by
  this issue is the function sub_182B0 of the file /cgi-bin/mainfunction.cgi of
  the component CGI Interface. This manipulation of the argument
  usefile/usescript/…
severity: critical
cvss: 9.9
cvssVector: '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'
cvssSource: cna
cwe:
  - CWE-78
  - CWE-77
vendor: DrayTek
product: Vigor2960
affected:
  - Vigor2960 1.5.1.6 Revision 8218
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T12:30:17.628Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-113390'
references:
  - url: 'https://vuldb.com/vuln/422666'
    label: >-
      VDB-422666 | DrayTek Vigor2960 CGI mainfunction.cgi sub_182B0 os command
      injection
  - url: 'https://vuldb.com/vuln/422666/cti'
    label: 'VDB-422666 | CTI Indicators (IOB, IOC, TTP, IOA)'
  - url: 'https://vuldb.com/cve/CVE-2026-113390'
    label: CVE-2026-113390 | CVE Analysis and Report
  - url: 'https://vuldb.com/submit/992224'
    label: >-
      Submit #992224 | DrayTek Vigor2960 Vigor2960 1.5.1.6 (revision 8218)
      Authenticated jsonstatus File Operations and Multi-Sink Command
  - url: >-
      https://github.com/yikesoftware/DrayTek_Vigor2960_Security_Analysis/tree/main/cases/DRV2960-0007-authenticated-jsonstatus-usefile-file-clobber
tags:
  - cve.org
ingestedAt: '2026-10-20T13:07:11.084Z'
---

## Overview

A flaw has been found in DrayTek Vigor2960 1.5.1.6 Revision 8218. Affected by this issue is the function sub_182B0 of the file /cgi-bin/mainfunction.cgi of the component CGI Interface. This manipulation of the argument usefile/usescript/option causes os command injection. Remote exploitation of the attack is possible. The exploit has been published and may be used. The vendor explains: "2960 1.5.1.7 has corrected many security issues. And 2960 is EoS with limited support, only major issues would be reviewed(e.g. unauthenticated vuln.)". This vulnerability only affects products that are no longer supported by the maintainer.

## Affected

- `Vigor2960 1.5.1.6 Revision 8218`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.