Vulnerability · Published Apr 19, 2025 · Assigned by VulDB
CVE-2025-3820Tenda W12/i24 httpd cgiSysUplinkCheckSet stack-based overflow
High 8.8
In plain English
A high-severity stack buffer overflow in i24 from Tenda. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 12.7% (higher than 96% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)12.7%top 3.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A vulnerability was found in Tenda W12 and i24 3.0.0.4(2887)/3.0.0.5(3644) and classified as critical. Affected by this issue is the function cgiSysUplinkCheckSet of the file /bin/httpd. The manipulation of the argument hostIp1/hostIp2 leads to stack-based buffer overflow. The attack may be launched 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
References
- VDB-305726 | Tenda W12/i24 httpd cgiSysUplinkCheckSet stack-based overflow vdb-entry, technical-description
- VDB-305726 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #555728 | Tenda w12,i24 w12 V3.0.0.5(3644) and i24 V3.0.0.4(2887) Stack-based Buffer Overflow third-party-advisory
- https://github.com/02Tn/vul/issues/4 exploit, issue-tracking
- https://www.tenda.com.cn/ product