Vulnerability · Published Jul 11, 2025 · Assigned by VulDB

CVE-2025-7434Tenda FH451 POST Request addressNat fromAddressNat 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 was found in Tenda FH451 up to 1.0.0.9 and classified as critical. Affected by this issue is the function fromAddressNat of the file /goform/addressNat of the component POST Request Handler. The manipulation of the argument page leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.

Affected products (as reported)

Vendor	Product	Versions
Tenda	FH451	1.0.0.01.0.0.11.0.0.21.0.0.31.0.0.41.0.0.51.0.0.61.0.0.7

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-316004 | Tenda FH451 POST Request addressNat fromAddressNat stack-based overflow vdb-entry, technical-description
VDB-316004 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #609058 | Tenda FH451 v1.0.0.9 Stack-based Buffer Overflow third-party-advisory
https://github.com/zezhifu1/cve_report/blob/main/FH451/fromAddressNat.md related
https://github.com/zezhifu1/cve_report/blob/main/FH451/fromAddressNat.md#payload exploit
https://www.tenda.com.cn/ product