Vulnerability · Published Feb 27, 2026 · Assigned by VulDB
CVE-2026-3275Tenda F453 httpd addressNat fromAddressNat 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 0.9% (higher than 58% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.9%top 41.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A weakness has been identified in Tenda F453 1.0.0.3. This affects the function fromAddressNat of the file /goform/addressNat of the component httpd. Executing a manipulation of the argument entrys can lead to buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could 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-347999 | Tenda F453 httpd addressNat fromAddressNat buffer overflow vdb-entry, technical-description
- VDB-347999 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #759622 | 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_75/README.md exploit
- https://www.tenda.com.cn/ product