CVE-2026-4226 HIGH

CVE-2026-4226: LB-LINK BL-WR9000 get_virtual_cfg sub_44E8D0 stack-based overflow

Vendor Lb-Link
Product BL-WR9000
Weakness CWE-121
Published March 16, 2026
Last update March 16, 2026

CVSS base score

8.7/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 16, 2026 CVE published
March 16, 2026 Record updated