CVE-2026-4227 | THREATINT

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.

PUBLISHED Reserved 2026-03-15 | Published 2026-03-16 | Updated 2026-03-16 | Assigner VulDB

HIGH: 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

HIGH: 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

HIGH: 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

9.0AV:N/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:UR

Problem types

Buffer Overflow

Memory Corruption

Product status

2.4.9

affected

Timeline

2026-03-15:	Advisory disclosed
2026-03-15:	VulDB entry created
2026-03-15:	VulDB entry last update

Credits

jfkk (VulDB User) reporter

VulDB coordinator

References

vuldb.com/?id.351150 (VDB-351150 | LB-LINK BL-WR9000 get_hidessid_cfg sub_44D844 buffer overflow) vdb-entry technical-description

vuldb.com/?ctiid.351150 (VDB-351150 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.771209 (Submit #771209 | LB-LINK BL-WR9000 V2.4.9 Buffer Overflow) third-party-advisory

github.com/.../LB-LINK/LB-LINK_HideSSID stack overflow_EN.md exploit

cve.org (CVE-2026-4227)

nvd.nist.gov (CVE-2026-4227)

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