Vulnerability · Published Aug 29, 2025 · Assigned by VulDB
CVE-2025-9605Tenda AC21/AC23 GetParentControlInfo stack-based overflow
Critical 9.8
In plain English
A critical-severity stack buffer overflow in AC21 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 6.0% (higher than 93% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)6.0%top 6.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A security vulnerability has been detected in Tenda AC21 and AC23 16.03.08.16. Affected is the function GetParentControlInfo of the file /goform/GetParentControlInfo. Such manipulation of the argument mac leads to stack-based buffer overflow. The attack can be launched remotely. The exploit has been disclosed publicly and may be used.
Affected products (as reported)
Weakness: CWE-121, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
References
- VDB-321783 | Tenda AC21/AC23 GetParentControlInfo stack-based overflow vdb-entry, technical-description
- VDB-321783 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #636545 | Tenda Wi-Fi 5 Router AC21 AC21V1.0re_V16.03.08.16 Buffer Overflow third-party-advisory
- Submit #636548 | Tenda Wi-Fi 5 Router AC23 AC23V1.0re_V16.03.07.52 Buffer Overflow (Duplicate) third-party-advisory
- https://github.com/XXRicardo/iot-cve/blob/main/Tenda/AC21/AC21V1.0re_V16.03.08.16.md related
- https://github.com/XXRicardo/iot-cve/blob/main/Tenda/AC23/Stack-Based%20Buffer%20Overflow%20in%20Tenda%20Wi-Fi%205%20Router%20AC23%EF%BC%88AC23V1.0re_V16.03.07.52%EF%BC%89.md exploit
- https://www.tenda.com.cn/ product