CVE-2025-12209: A vulnerability was determined in Tenda O3 1.0.0.10(2478). Affected is the function SetValue/GetValue of the file…
CVE-2025-12209 · Severity: high · CVSS 8.8 · Published 2025-10-27
A vulnerability was determined in Tenda O3 1.0.0.10(2478). Affected is the function SetValue/GetValue of the file /goform/setDhcpConfig. Executing a manipulation of the argument dhcpEn can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.
No. Junglewise Threat Intelligence has no report of CVE-2025-12209 being exploited in the wild.
How severe is CVE-2025-12209?
High severity, with a CVSS score of 8.8, published 27 October 2025.
Which products and versions are affected?
Tenda O3, Tenda O3 Firmware1.0.0.10\(2478\). The advisory does not name versions.
Is there a fix for CVE-2025-12209?
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-2025-12209?
Check whether you run Tenda O3 or Tenda O3 Firmware1.0.0.10\(2478\). 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.