Vulnerability · Published Sep 9, 2025 · Assigned by VulDB
CVE-2025-10120Tenda AC20 GetParentControlInfo strcpy buffer overflow
High 8.8
In plain English
A high-severity buffer overflow in AC20 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 58% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.9%top 41.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was detected in Tenda AC20 up to 16.03.08.12. The impacted element is the function strcpy of the file /goform/GetParentControlInfo. The manipulation of the argument mac results in buffer overflow. The attack may be performed from remote. The exploit is now public and may be used.
Affected products (as reported)
Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
References
- VDB-323089 | Tenda AC20 GetParentControlInfo strcpy buffer overflow vdb-entry, technical-description
- VDB-323089 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #645680 | Tenda AC20 <= V16.03.08.12 (latest) Buffer Overflow third-party-advisory
- https://github.com/cymiao1978/cve/blob/main/4.md related
- https://github.com/cymiao1978/cve/blob/main/4.md#poc exploit
- https://www.tenda.com.cn/ product