# CVE-2026-113390: DrayTek Vigor2960 OS command injection in CGI interface

Source: https://junglewise.ai/threats/cve-2026-113390-a-flaw-has-been-found-in-draytek-vigor2960-1-5-1-6-revision-8218  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-20. Updated: 2026-10-20  
License: CC BY 4.0 with a link back

CVE-2026-113390 · Severity: critical · CVSS 9.9 · Published 2026-10-20

DrayTek Vigor2960 is a network appliance used in business environments for routing and connectivity. A flaw in the device's web-based administration interface allows an authenticated attacker to inject arbitrary OS commands by manipulating CGI parameters, potentially leading to complete device compromise and access to the network it protects.

Technologies: [DrayTek Vigor2960](https://junglewise.ai/threats/technologies/vigor2960). Vendors: [DrayTek](https://junglewise.ai/threats/vendors/draytek).

## Quick answers

**Is CVE-2026-113390 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-113390 being exploited in the wild.

**How severe is CVE-2026-113390?** Critical severity, with a CVSS score of 9.9, published 20 October 2026.

**Which products and versions are affected?** DrayTek Vigor2960 1.5.1.6 Revision 8218.

**Is there a fix for CVE-2026-113390?** Yes: fixed in 1.5.1.7. Until then: The vendor has indicated that Vigor2960 is end-of-support with limited support provided only for unauthenticated vulnerabilities. Restrict administrative access to the device's web interface to trusted networks only. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-113390 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-113390?** Check whether you run DrayTek Vigor2960 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 1.5.1.7

The vendor has indicated that Vigor2960 is end-of-support with limited support provided only for unauthenticated vulnerabilities. Restrict administrative access to the device's web interface to trusted networks only.

## Technical details

An OS command injection vulnerability exists in the CGI interface component (file /cgi-bin/mainfunction.cgi, function sub_182B0) of DrayTek Vigor2960 1.5.1.6 Revision 8218. The vulnerability is triggered through manipulation of the usefile, usescript, or option arguments. Remote exploitation requires authentication; a functional exploit has been published.

## Affected products

- DrayTek Vigor2960 1.5.1.6 Revision 8218

## Timeline

- 2026-10-20: disclosed: Published on NVD
- 2026: other: Exploit publicly available

## References

- [https://github.com/yikesoftware/DrayTek_Vigor2960_Security_Analysis/tree/main/cases/DRV2960-0007-authenticated-jsonstatus-usefile-file-clobber](https://github.com/yikesoftware/DrayTek_Vigor2960_Security_Analysis/tree/main/cases/DRV2960-0007-authenticated-jsonstatus-usefile-file-clobber)
- [https://vuldb.com/cve/CVE-2026-113390](https://vuldb.com/cve/CVE-2026-113390)

## Related threats

- [DrayTek Vigor2960 command injection in IPsec handler](https://junglewise.ai/threats/cve-2026-113397-a-security-vulnerability-has-been-detected-in-draytek-vigor2960)
- [DrayTek Vigor2960 command injection in rename table handler](https://junglewise.ai/threats/cve-2026-113396-a-weakness-has-been-identified-in-draytek-vigor2960-1-5-1-6)
- [DrayTek Vigor2960 path traversal in swmconfigupload](https://junglewise.ai/threats/cve-2026-113395-a-security-flaw-has-been-discovered-in-draytek-vigor2960-1-5-1-6)
- [DrayTek Vigor2960 path traversal and command injection in setSWMProfile](https://junglewise.ai/threats/cve-2026-113394-a-vulnerability-was-identified-in-draytek-vigor2960-1-5-1-6)
- [DrayTek Vigor2960 arbitrary file write in commonupload](https://junglewise.ai/threats/cve-2026-113393-a-vulnerability-was-determined-in-draytek-vigor2960-1-5-1-6)