Vulnerability · Published Feb 22, 2026 · Assigned by VulDB

CVE-2026-2911Tenda FH451 GstDhcpSetSer buffer overflow

High 8.8

In plain English

A high-severity 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 3.5% (higher than 89% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)3.5%top 10.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in Tenda FH451 up to 1.0.0.9. This issue affects some unknown processing of the file /goform/GstDhcpSetSer. The manipulation leads to 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)

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-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-347220 | Tenda FH451 GstDhcpSetSer buffer overflow vdb-entry
VDB-347220 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
Submit #755218 | Tenda FH451 V1.0.0.9 Buffer overflow vulnerability third-party-advisory
https://vuln.ricky.place/Tenda/FH451/ exploit
https://www.tenda.com.cn/ product