Vulnerability · Published Oct 20, 2026 · Assigned by VulDB
CVE-2026-113392DrayTek Vigor2960 Apmupload mainfunction.cgi path traversal
High 7.4
In plain English
A high-severity path traversal in Vigor2960 from DrayTek. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).
Official 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.
Affected products (as reported)
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L/E:P/RL:O/RC:C
References
- VDB-422668 | DrayTek Vigor2960 Apmupload mainfunction.cgi path traversal vdb-entry, technical-description
- VDB-422668 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
- CVE-2026-113392 | CVE Analysis and Report third-party-advisory
- Submit #992245 | DrayTek Vigor2960 Vigor2960 1.5.1.6 (revision 8218) uthenticated apmupload Path Traversal File Clobber third-party-advisory
- https://github.com/yikesoftware/DrayTek_Vigor2960_Security_Analysis/tree/main/cases/DRV2960-0009-authenticated-apmupload-path-traversal-clobber exploit
- https://fw.draytek.com.tw/Vigor2960/Firmware/v1.5.1.7/Vigor2960_v1.5.1.7.zip patch