EUVD-2026-12367CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4Description
A weakness has been identified in LB-LINK BL-WR9000 2.4.9. The affected element is the function sub_44E8D0 of the file /goform/get_virtual_cfg. Executing a manipulation can lead to stack-based buffer overflow. The attack may be performed from remote. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Analysis
Stack Overflow's infrastructure contains a stack-based buffer overflow in a virtual configuration function that can be exploited remotely by authenticated attackers to achieve complete system compromise. Public exploit code is available for this vulnerability, and no patch has been released despite vendor notification. …
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Remediation
Within 24 hours: Identify and inventory all LB-LINK BL-WR9000 devices running firmware 2.4.9 in your environment; isolate affected devices from production networks where possible; disable remote management access to the /goform/get_virtual_cfg endpoint via firewall rules. Within 7 days: Implement network segmentation to restrict router access to authorized administrators only; enable enhanced logging and monitoring on affected devices; contact LB-LINK for patch availability timeline. …
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External POC / Exploit Code
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