CVE-2026-113391 DrayTek Vigor2960 Upload Endpoint mainfunction.cgi uploadlangs command injection
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-113391?
CVE-2026-113391 is a critical vulnerability in DrayTek Vigor2960, published on 20 Oct 2026.
Official description
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.
Which versions are affected by CVE-2026-113391?
How do I fix CVE-2026-113391?
No fix has been published for CVE-2026-113391 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-113391 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-113391 exists.
Sources
Also known as GHSA-f3vf-pm24-g43p.