Vulnerability · Published Mar 22, 2026 · Assigned by VulDB
CVE-2026-4535Tenda FH451 WrlclientSet 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 0.6% (higher than 51% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 48.9% 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 1.0.0.9. This vulnerability affects the function WrlclientSet of the file /goform/WrlclientSet. Such manipulation of the argument GO leads to stack-based buffer overflow. The attack can be launched 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-352323 | Tenda FH451 WrlclientSet stack-based overflow vdb-entry, technical-description
- VDB-352323 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #774343 | Tenda FH451 V1.0.0.9 Stack-based Buffer Overflow third-party-advisory
- https://github.com/Litengzheng/vul_db/blob/main/FH451/vul_42/README.md exploit
- https://www.tenda.com.cn/ product