Vulnerability · Published Mar 1, 2026 · Assigned by VulDB
CVE-2026-3398Tenda F453 httpd AdvSetWan fromAdvSetWan 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 0.7% (higher than 54% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.7%top 45.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was determined in Tenda F453 1.0.0.3. Affected is the function fromAdvSetWan of the file /goform/AdvSetWan of the component httpd. Executing a manipulation of the argument wanmode/PPPOEPassword can lead to buffer overflow. The attack can 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-348293 | Tenda F453 httpd AdvSetWan fromAdvSetWan buffer overflow vdb-entry, technical-description
- VDB-348293 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #759630 | 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_82/README.md exploit
- https://www.tenda.com.cn/ product