Vulnerability · Published Feb 27, 2026 · Assigned by VulDB
CVE-2026-3274Tenda F453 httpd L7Prot frmL7ProtForm buffer overflow
High 8.8
In plain English
A high-severity buffer overflow in F453 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 64% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)1.0%top 35.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A security flaw has been discovered in Tenda F453 1.0.0.3. Affected by this issue is the function frmL7ProtForm of the file /goform/L7Prot of the component httpd. Performing a manipulation of the argument page results in buffer overflow. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks.
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-347998 | Tenda F453 httpd L7Prot frmL7ProtForm buffer overflow vdb-entry, technical-description
- VDB-347998 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #759621 | Tenda F453 v1.0.0.3 Buffer Access Using Size of Source Buffer third-party-advisory
- https://github.com/Litengzheng/vul_db/blob/main/F453/vul_74/README.md exploit
- https://www.tenda.com.cn/ product