CVE-2026-113393 DrayTek Vigor2960 commonupload mainfunction.cgi unrestricted upload

Medium 5.3 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-113393?

CVE-2026-113393 is a medium-severity vulnerability in DrayTek Vigor2960, published on 20 Oct 2026.

Official description

A vulnerability was determined in DrayTek Vigor2960 1.5.1.6 Revision 8218. This issue affects some unknown processing of the file /cgi-bin/mainfunction.cgi of the component commonupload. Executing a manipulation of the argument upload_path/upload_name can lead to unrestricted upload. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. Upgrading to version 1.5.1.7 is capable of addressing this issue. It is advisable 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.

Weakness: CWE-434, CWE-284

Which versions are affected by CVE-2026-113393?

How do I fix CVE-2026-113393?

No fix has been published for CVE-2026-113393 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-113393 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-113393 exists.

Sources

Also known as GHSA-hghw-mj7p-r942.

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