CVE-2026-113392

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-22

Impact

Authenticated remote attackers can read or overwrite arbitrary files via path traversal. They need valid credentials to the router's web management interface.

Root cause

Improper input validation of the action parameter in the Apmupload component of /cgi-bin/mainfunction.cgi enables directory traversal.

Affected systems

DrayTek Vigor2960 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 firmware to version 1.5.1.7. If patching must wait, restrict access to the web management interface to trusted administrative IPs only.

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

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NVD description

A vulnerability was found in DrayTek Vigor2960 1.5.1.6 Revision 8218. This vulnerability affects unknown code of the file /cgi-bin/mainfunction.cgi of the component Apmupload. Performing a manipulation of the argument action results in path traversal. The attack is possible to be carried out remotely. The exploit has been made public and could be used. Upgrading to version 1.5.1.7 is able to resolve this issue. Upgrading the affected component is advised. 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-2026-113392