Quick answers
- Is CVE-2026-18616 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-18616 being exploited in the wild.
- How severe is CVE-2026-18616?
- Critical severity, with a CVSS score of 9.8, published 3 August 2026.
- Which products and versions are affected?
- GL.iNet GL-MT3000 up to 4.4.5.
- Is there a fix for CVE-2026-18616?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-18616 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-18616?
- Check whether you run GL.iNet GL-MT3000 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.
Technical details
The vulnerability is a command injection flaw in the server.set_peer function within the wg-server.so native plugin, accessible via /cgi-bin/glc. The public_key parameter is improperly sanitized, allowing an attacker to inject shell commands that are executed with device privileges. The attack is network-accessible without authentication requirements. An attacker can achieve remote code execution and complete compromise of the router. The vulnerability affects GL-MT3000 firmware up to version 4.4.5, and the vendor has been notified.
Affected products
- GL-iNet GL-MT3000 up to 4.4.5
Timeline
- 2026-08-03: disclosed