Vulnerability · Published May 31, 2026 · Assigned by VulDB
CVE-2026-10189Tenda W12 httpd cgiSysTimeInfoSet stack-based overflow
High 8.8
In plain English
A high-severity stack buffer overflow in W12 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.5%top 56.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability has been found in Tenda W12 3.0.0.7(4763). This vulnerability affects the function cgiSysTimeInfoSet of the file /bin/httpd. The manipulation of the argument sec leads to stack-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may 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-367470 | Tenda W12 httpd cgiSysTimeInfoSet stack-based overflow vdb-entry, technical-description
- VDB-367470 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-10189 | CVE Analysis and Report third-party-advisory
- Submit #820021 | Tenda W12 V3.0.0.7(4763) stack third-party-advisory
- http://cdn2.v50to.cc/cgiSysTimeInfoSet_overflow.zip exploit
- https://www.tenda.com.cn/ product