CVE-2026-4227: LB-LINK BL-WR9000 get_hidessid_cfg sub_44D844 buffer overflow

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2026-03-16 · updated 2026-06-17
Weakness: CWE-119

Description

A security vulnerability has been detected in LB-LINK BL-WR9000 2.4.9. The impacted element is the function sub_44D844 of the file /goform/get_hidessid_cfg. The manipulation leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products

LB-LINK BL-WR9000: 2.4.9

References

https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_HideSSID%20stack%20overflow_EN.md
https://vuldb.com/?ctiid.351150
https://vuldb.com/?id.351150
https://vuldb.com/?submit.771209

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