CVE-2025-12611: A vulnerability was identified in Tenda AC21 16.03.08.16. This vulnerability affects the function formSetPPTPServer of…
CVE-2025-12611 · Severity: high · CVSS 8.8 · Published 2025-11-03
A vulnerability was identified in Tenda AC21 16.03.08.16. This vulnerability affects the function formSetPPTPServer of the file /goform/SetPptpServerCfg. The manipulation of the argument startIp leads to buffer overflow. Remote exploitation of the attack is possible. The exploit is publicly available and might be used.
No. Junglewise Threat Intelligence has no report of CVE-2025-12611 being exploited in the wild.
How severe is CVE-2025-12611?
High severity, with a CVSS score of 8.8, published 3 November 2025.
Which products and versions are affected?
Tenda Ac21, Tenda Ac21 Firmware. The advisory does not name versions.
Is there a fix for CVE-2025-12611?
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-2025-12611?
Check whether you run Tenda Ac21 or Tenda Ac21 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.