CVE-2026-113397

7.4High

Published 20 Oct 2026 · NVD status: Received · AI triage by gemini-3.8-flash

7.4High

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None
Impact: Limited impact
Weakness: CWE-74, CWE-77

Impact

Authenticated remote attackers can execute arbitrary commands on the router. They only need low-privilege network access to the web management interface.

Root cause

Improper input sanitization of the 'option' argument in the 'ruequest_certificate' function inside /cgi-bin/mainfunction.cgi allows command injection.

Affected systems

DrayTek Vigor2960 version 1.5.1.6 Revision 8218

CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

Fix & remediation

Upgrade router firmware to version 1.5.1.7. If upgrading must wait, restrict access to the web management interface to trusted internal management IPs or disable remote management entirely.

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD description

A security vulnerability has been detected in DrayTek Vigor2960 1.5.1.6 Revision 8218. This affects the function ruequest_certificate of the file /cgi-bin/mainfunction.cgi of the component IPsec Handler. Such manipulation of the argument option leads to command injection. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 1.5.1.7 mitigates this issue. Upgrading the affected component is recommended. 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.

References

Source: nvd.nist.gov/vuln/detail/CVE-2026-113397