High 8.8Published Mar 16, 2026

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

Updated under an hour ago (Oct 26, 2026, 2:20 PM ET)

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It affects LB-LINK BL-WR9000 and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for LB-LINK BL-WR9000

Exploited in the last 30 days

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.

CVSS: 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Weakness (CWE): CWE-120, CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Analyzed
Record last updated: Mar 16, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

LB-LINK BL-WR9000 lb_link:bl_wr9000 (from the name)	2.4.9	CNA record
lb-link bl-wr9000_firmware lb-link:bl-wr9000_firmware	2.4.9	NVD

References

References

https://vuldb.com/?id.351150	vdb-entry, technical-description, third-party-advisory
https://vuldb.com/?ctiid.351150	signature, permissions-required, vdb-entry
https://vuldb.com/?submit.771209	third-party-advisory, vdb-entry
https://github.com/glkfc/IoT-Vulnerability/blob/main/LB-LINK/LB-LINK_HideSSID%20stack%20overflow_EN.md	exploit, third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.