Vulnerability · Published Jul 18, 2025 · Assigned by VulDB
CVE-2025-7796Tenda FH451 PPTPDClient fromPptpUserAdd stack-based overflow
High 8.8
In plain English
A high-severity stack buffer overflow in FH451 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)1.0%top 37.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability, which was classified as critical, was found in Tenda FH451 1.0.0.9. This affects the function fromPptpUserAdd of the file /goform/PPTPDClient. The manipulation of the argument Username leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.
Affected products (as reported)
Weakness: CWE-121, 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-316857 | Tenda FH451 PPTPDClient fromPptpUserAdd stack-based overflow vdb-entry, technical-description
- VDB-316857 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #616345 | Tenda FH451 v1.0.0.9 Buffer Overflow third-party-advisory
- https://github.com/panda666-888/vuls/blob/main/tenda/fh451/fromPptpUserAdd.md related
- https://github.com/panda666-888/vuls/blob/main/tenda/fh451/fromPptpUserAdd.md#poc exploit
- https://www.tenda.com.cn/ product