CVE-2025-3820

Public Exploit
Tenda W12/i24 httpd cgiSysUplinkCheckSet stack-based overflow

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.

Category

8.7
CVSS
Severity: High
CVSS 4.0 •
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.06%
Third-Party Advisory vuldb.com
Affected: Tenda W12
Affected: Tenda i24
Published at:
Updated at:

References

Link Tags
https://vuldb.com/?id.305726 vdb entry technical description
https://vuldb.com/?ctiid.305726 permissions required signature
https://vuldb.com/?submit.555728 third party advisory
https://github.com/02Tn/vul/issues/4 issue tracking exploit
https://www.tenda.com.cn/ product

Frequently Asked Questions

What is the severity of CVE-2025-3820?
CVE-2025-3820 has been scored as a high severity vulnerability.
How to fix CVE-2025-3820?
To fix CVE-2025-3820, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-3820 being actively exploited in the wild?
It is possible that CVE-2025-3820 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-3820?
CVE-2025-3820 affects Tenda W12, Tenda i24.
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