by Kastro
Paper/Archive/CVE-2026-4226

CVE-2026-4226

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

EPSS 0.7%public exploitCVSS 9.8
critical.is priorityof 100
50
CVSS 9.8 (NVD)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 53.4.534 × 2010.7Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
BL-WR90002.4.9–CNA

Scores by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
VulDB (CNA)8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)8.8CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
VulDB (CNA)8.7CVSS: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
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

writeupvuldb.com/?id.351149refvuldb.com/?ctiid.351149writeupvuldb.com/?submit.771207exploitgithub.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_VirtualRules%20stack%20overflow_EN.md