Medium 5.3Published May 11, 2026

CVE-2026-3609XIGNCODE3 xhunter1.sys kernel driver contains a Privilege Escalation Vulnerability

Updated under an hour ago (Oct 26, 2026, 8:30 PM ET)

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It affects Wellbia XIGNCODE3. 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 Wellbia XIGNCODE3

Exploited in the last 30 days

Wellbia's XIGNCODE3 xhunter1.sys kernel driver, version 10.0.10011.16384 through 2023.12.7.78, privilege escalation vulnerability provides access to the IRP_MJ_WRITE command interface, which allows any user process to request a PROCESS_ALL_ACCESS. Note: KVE 2023-5589 (https://krcert.or.kr) was initially issued for version 10.0.10011.16384, but the vulnerability was not fully remediated and remains in version 2023.12.7.78.

CVSS: 5.3 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Weakness (CWE): CWE-269, CWE-732, CWE-284, CWE-266
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: certcc
NVD analysis: Modified
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Wellbia XIGNCODE3 wellbia:xigncode3 (from the name)	from 10.0.10011.16384 through 2023.12.7.78	CNA record
wellbia xigncode3 wellbia:xigncode3	10.0.10011.16384	NVD

References

References

https://crcert.or.kr	broken-link
https://blacksnufkin.github.io/posts/AntiCheat-LPE-CVE-2026-3609/	exploit, third-party-advisory
https://blacksnufkin.github.io/posts/Hunting-the-Hunter/

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.