Vulnerability · Published Apr 20, 2026 · Assigned by VulDB
CVE-2026-6631Tenda F451 httpd webExcptypemanFilter fromwebExcptypemanFilter buffer overflow
High 8.8
In plain English
A high-severity 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 46% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.5%top 54.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was determined in Tenda F451 1.0.0.7_cn_svn7958. Impacted is the function fromwebExcptypemanFilter of the file /goform/webExcptypemanFilter of the component httpd. Executing a manipulation of the argument page can lead to buffer overflow. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.
Affected products (as reported)
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-358265 | Tenda F451 httpd webExcptypemanFilter fromwebExcptypemanFilter buffer overflow vdb-entry, technical-description
- VDB-358265 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #792904 | 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/25 exploit, issue-tracking
- https://www.tenda.com.cn/ product