CVE-2025-4076: LB-LINK BL-AC3600 Password lighttpd.cgi easy_uci_set_option_string_0 command injection
A vulnerability classified as critical has been found in LB-LINK BL-AC3600 up to 1.0.22. This affects the function easyucisetoptionstring0 of the file /cgi-bin/lighttpd.cgi of the component Password Handler. The manipulation of the argument routepwd leads to command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-4076?
CVE-2025-4076 is classified as critical due to its potential for command injection.
How do I fix CVE-2025-4076?
To mitigate CVE-2025-4076, upgrade the LB-LINK BL-AC3600 software to a version beyond 1.0.22.
What component is affected by CVE-2025-4076?
CVE-2025-4076 affects the Password Handler component, specifically the easy_uci_set_option_string_0 function.
What type of attack can be executed using CVE-2025-4076?
CVE-2025-4076 allows for command injection attacks through manipulation of the routepwd argument.
Which versions of LB-LINK BL-AC3600 are impacted by CVE-2025-4076?
LB-LINK BL-AC3600 versions up to and including 1.0.22 are impacted by CVE-2025-4076.