Vulnerability · Published May 25, 2026 · Assigned by VulDB
CVE-2026-9431Tenda F1202 PptpUserAdd fromPptpUserAdd stack-based overflow
High 8.8
In plain English
A high-severity stack buffer overflow in F1202 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.4%top 61.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was identified in Tenda F1202 1.2.0.20(408). This affects the function fromPptpUserAdd of the file /goform/PptpUserAdd. The manipulation of the argument opttype leads to stack-based buffer overflow. The attack can be initiated 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-365412 | Tenda F1202 PptpUserAdd fromPptpUserAdd stack-based overflow vdb-entry, technical-description
- VDB-365412 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #813916 | Tenda F1202 V1.2.0.20(408) Stack-based Buffer Overflow third-party-advisory
- https://github.com/Litengzheng/vuldb_new2/blob/main/F1202/vul_35/README.md exploit
- https://www.tenda.com.cn/ product