Privilege Escalation Vulnerability in Wellbia's XIGNCODE3 Kernel Driver
CVE-2026-3609

5.3MEDIUM

Key Information:

Vendor

Wellbia

Status
Xigncode3 Anti-cheat
Vendor
CVE Published:
11 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3609?

The XIGNCODE3 kernel driver, developed by Wellbia, contains a vulnerability that allows any user process access to the IRP_MJ_REITS command interface. This can result in unauthorized elevation of privileges, as it permits a process to issue requests for PROCESS_ALL_ACCESS. This weakness poses a significant security risk, enabling potential malicious actors to exploit the driver and gain elevated access to system resources.

Affected Version(s)

XIGNCODE3 Anti-Cheat 10.0.10011.16384

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CredsHunter
Created by BlackSnufkin

References

https://crcert.or.kr
https://blacksnufkin.github.io/posts/AntiCheat-LPE-CVE-20...

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.