RCE in Draytek Vigor2960
CVE-2026-113390
A flaw has been found in DrayTek Vigor2960 1.5.1.6 Revision 8218. Affected by this issue is the function sub_182B0 of the file /cgi-bin/mainfunction.cgi of the component CGI Interface. This manipulation of the argument usefile/usescript/option causes os command injection. Remote exploitation of the attack is possible. The exploit has been published and may be used. 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.
Vulnerability class: Command Injection (OS Command Injection)
Published .
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Draytek Vigor2960 — versions 1.5.1.6 Revision 8218
Weakness classification (CWE)
References
- vuldb.com/vuln/422666 (technical-description, vdb-entry)
- vuldb.com/vuln/422666/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-113390 (third-party-advisory)
- vuldb.com/submit/992224 (third-party-advisory)
- github.com/yikesoftware/DrayTek_Vigor2960_Security_Analysis/tree/main/cases/DRV… (exploit)
Frequently asked questions
- What is CVE-2026-113390?
- CVE-2026-113390 is a critical-severity vulnerability in Draytek Vigor2960, classified under Command Injection. CVSS score: 9.9/10. Published 2026-10-20.
- How severe is CVE-2026-113390?
- Critical severity. CVSS v3 base score is 9.9 out of 10.