CVE-2026-113391CWE-74CWE-77command-injection

CVE-2026-113391

Critical · published October 20, 2026

CVSS v3.1
9.9
EPSS
2%
Percentile
83.0
In the wild
Unconfirmed
What it is

A vulnerability has been found in DrayTek Vigor2960 1.5.1.6 Revision 8218. This affects the function uploadlangs of the file /cgi-bin/mainfunction.cgi of the component Upload Endpoint. Such manipulation leads to command injection. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.5.1.7 is able to mitigate this issue. It is recommended to upgrade the affected component. 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.

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
9.4 · 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
EPSS
0.02280 · 83.0th percentile
Weaknesses
CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'); CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')
Published
2026-10-20T17:16Z
References (6)
EPSS history
Timeline
  • 22 OCT 03:29Z
    EPSS moved — → 2%
    epss
  • 20 OCT 12:45Z
    DrayTek Vigor2960 Upload Endpoint mainfunction.cgi uploadlangs command injection
    cvelistv5
  • 20 OCT 12:45Z
    DrayTek Vigor2960 Upload Endpoint mainfunction.cgi uploadlangs command injection
    cvelistv5