Vulnerability · Published Apr 12, 2026 · Assigned by VulDB
CVE-2026-6121Tenda F451 httpd WrlclientSet stack-based overflow
High 8.8
In plain English
A high-severity stack buffer overflow in F451 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.5%top 56.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A flaw has been found in Tenda F451 1.0.0.7. Affected by this vulnerability is the function WrlclientSet of the file /goform/WrlclientSet of the component httpd. This manipulation of the argument GO causes stack-based buffer overflow. The attack may be initiated remotely. The exploit has been published 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-356984 | Tenda F451 httpd WrlclientSet stack-based overflow vdb-entry, technical-description
- VDB-356984 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #792865 | Tenda F451_kfw_V1.0.0.7_cn_svn7958 V1.0.0.7 Buffer Overflow third-party-advisory
- https://github.com/Jimi-Lab/cve/issues/12 exploit, issue-tracking
- https://www.tenda.com.cn/ product