CVE-2026-4226

HIGH

LB-LINK BL-WR9000 get_virtual_cfg sub_44E8D0 stack-based overflow

Title source: cna
STIX 2.1

Description

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.

Scores

CVSS v3 8.8
EPSS 0.0014
EPSS Percentile 33.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-787 CWE-121 CWE-119
Status published
Products (2)
LB-LINK/BL-WR9000 2.4.9
lb-link/bl-wr9000_firmware 2.4.9
Published Mar 16, 2026
Tracked Since Mar 16, 2026