Vulnerability · Published May 8, 2026 · Assigned by VulDB
CVE-2026-8138Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based overflow
High 8.8
In plain English
A high-severity stack buffer overflow in CX12L from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.6%top 52.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was found in Tenda CX12L 16.03.53.12. This issue affects the function formSetPPTPServer of the file /goform/SetPptpServerCfg”. The manipulation results in stack-based buffer overflow. The attack can be executed remotely. The exploit has been made public and could 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-361927 | Tenda CX12L SetPptpServerCfg” formSetPPTPServer stack-based overflow vdb-entry, technical-description
- VDB-361927 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #808867 | Tenda CX12L V16.03.53.12 Stack-based Buffer Overflow third-party-advisory
- https://github.com/cve-a/lvdan/issues/6 exploit, issue-tracking
- https://www.tenda.com.cn/ product