CVE-2026-3609

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 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 13% of CVEs (scores of 2026-10-25)

Published

2026-05-11

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• wellbia:xigncode3

References

• https://blacksnufkin.github.io/posts/AntiCheat-LPE-CVE-2026-3609/
• https://blacksnufkin.github.io/posts/Hunting-the-Hunter/
• https://crcert.or.kr
• https://blacksnufkin.github.io/posts/AntiCheat-LPE-CVE-2026-3609/

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