CVE-2025-3820: Tenda W12/i24 httpd cgiSysUplinkCheckSet stack-based overflow
First published: Sat Apr 19 2025(Updated: )
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.
Credit: cna@vuldb.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Tenda W12 | >=3.0.0.4(2887)<=3.0.0.5(3644) | |
| Tenda i24 | >=3.0.0.4(2887)<=3.0.0.5(3644) |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2025-3820?
CVE-2025-3820 is classified as a critical vulnerability due to its potential to exploit a stack-based buffer overflow.
What devices are affected by CVE-2025-3820?
CVE-2025-3820 affects Tenda W12 and Tenda i24 routers running firmware versions 3.0.0.4(2887) to 3.0.0.5(3644).
How do I mitigate CVE-2025-3820?
Mitigation for CVE-2025-3820 involves updating the affected Tenda devices to a patched firmware version that resolves the buffer overflow issue.
What type of attack can CVE-2025-3820 lead to?
CVE-2025-3820 can lead to remote code execution through a stack-based buffer overflow attack.
What are the potential impacts of CVE-2025-3820?
The potential impacts of CVE-2025-3820 include unauthorized access, data breaches, and complete compromise of the affected Tenda router.
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