CVE-2026-31255: A command injection vulnerability exists in Tenda AC18 V15.03.05.05_multi. The vulnerability is located in the…
CVE-2026-31255 · Severity: critical · CVSS 9.8 · Published 2026-04-27
A command injection vulnerability exists in Tenda AC18 V15.03.05.05_multi. The vulnerability is located in the /goform/SetSambaCfg interface, where improper handling of the guestuser parameter allows attackers to execute arbitrary system commands.
No. Junglewise Threat Intelligence has no report of CVE-2026-31255 being exploited in the wild.
How severe is CVE-2026-31255?
Critical severity, with a CVSS score of 9.8, published 27 April 2026.
Which products and versions are affected?
Tenda AC18, Tenda Ac18 Firmware. The advisory does not name versions.
Is there a fix for CVE-2026-31255?
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.
Am I affected by CVE-2026-31255?
Check whether you run Tenda AC18 or Tenda Ac18 Firmware. 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.