Vulnerability · Published Sep 22, 2025 · Assigned by VulDB
CVE-2025-10815Tenda AC20 HTTP POST Request SetPptpServerCfg 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 59% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.9%top 40.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was identified in Tenda AC20 up to 16.03.08.12. Affected by this issue is the function strcpy of the file /goform/SetPptpServerCfg of the component HTTP POST Request Handler. Such manipulation of the argument startIp leads to buffer overflow. The attack can be launched remotely. The exploit is publicly available and might 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-325173 | Tenda AC20 HTTP POST Request SetPptpServerCfg strcpy buffer overflow vdb-entry, technical-description
- VDB-325173 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #654460 | tenda AC20 <= V16.03.08.12 (latest) Buffer Overflow third-party-advisory
- https://github.com/Juana-2u/Tenda-AC20 exploit
- https://www.tenda.com.cn/ product