Vulnerability · Published Mar 8, 2026 · Assigned by VulDB
CVE-2026-3729Tenda F453 PPTPDClient fromPptpUserAdd stack-based overflow
High 8.8
In plain English
A high-severity stack 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 identified in Tenda F453 1.0.0.3/3.As. Impacted is the function fromPptpUserAdd of the file /goform/PPTPDClient. Such manipulation of the argument username/opttype leads to stack-based buffer overflow. The attack can be executed remotely. The exploit is publicly available and might 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-349707 | Tenda F453 PPTPDClient fromPptpUserAdd stack-based overflow vdb-entry, technical-description
- VDB-349707 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #766934 | Tenda F453 v1.0.0.3 Stack-based Buffer Overflow third-party-advisory
- https://github.com/Litengzheng/vul_db/blob/main/F453/vul_98/README.md exploit
- https://www.tenda.com.cn/ product