Vulnerability · Published Jul 25, 2025 · Assigned by VulDB
CVE-2025-8160Tenda AC20 httpd SetSysTimeCfg 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 1.5% (higher than 75% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)1.5%top 25.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability classified as critical has been found in Tenda AC20 up to 16.03.08.12. Affected is an unknown function of the file /goform/SetSysTimeCfg of the component httpd. The manipulation of the argument timeZone leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the 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-317574 | Tenda AC20 httpd SetSysTimeCfg buffer overflow vdb-entry, technical-description
- VDB-317574 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #620625 | Tenda AC20 <= V16.03.08.12 Buffer Overflow third-party-advisory
- https://github.com/CH13hh/cve/blob/main/tenda1.md exploit
- https://www.tenda.com.cn/ product