CVE-2026-3609

7.8

HIGH CVSS 3.1

XIGNCODE3 xhunter1.sys kernel driver contains a Privilege Escalation Vulnerability

Overview

Description

Wellbia's XIGNCODE3 xhunter1.sys kernel driver Privilege Escalation Vulnerability provides access to IRP_MJ_REITS command interface, which allows any user process to request a PROCESS_ALL_ACCESS. Cross reference to KVE 2023-5589 (https://krcert.or.kr)

Details

INFO

Published Date :

May 11, 2026, 6:16 p.m.

Last Modified :

May 13, 2026, 2:17 p.m.

Remotely Exploit :

No

Source :

[email protected]

Impact

Affected Products

The following products are affected by CVE-2026-3609 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID	Vendor	Product	Action
1	Wellbia	xigncode3

: Total Affected Vendor : 1 | Products : 1

Scoring

CVSS Scores

The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.

Score	Version	Severity	Vector	Exploitability Score	Impact Score	Source
	CVSS 3.1	HIGH				[email protected]
	CVSS 3.1	MEDIUM				134c704f-9b21-4f2e-91b3-4a467353bcc0

Solution

Update XIGNCODE3 xhunter1.sys kernel driver to a version that restricts access to IRP_MJ_REITS command.

Update the XIGNCODE3 xhunter1.sys kernel driver.
Restrict access to the IRP_MJ_REITS command interface.
Apply vendor-provided patches or security updates.

Public PoC/Exploit Available at Github

CVE-2026-3609 has a 4 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-3609.

URL	Resource
https://blacksnufkin.github.io/posts/AntiCheat-LPE-CVE-2026-3609/	Exploit Third Party Advisory
https://crcert.or.kr	Broken Link
https://blacksnufkin.github.io/posts/AntiCheat-LPE-CVE-2026-3609/	Exploit Third Party Advisory

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-3609 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-3609 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

sardonyx001/awesome-stars

My Awesome List

Updated: 1 day, 8 hours ago

0 stars 0 fork 0 watcher

Born at : April 24, 2026, 12:42 a.m. This repo has been linked 5 different CVEs too.

BlackSnufkin/BYOVD

BYOVD research use cases featuring vulnerable driver discovery and reverse engineering methodology. (CVE-2025-52915, CVE-2025-1055, CVE-2026-3609, CVE-2026-8501).

byovd malware-development redteam rust vulnerable-driver av-killer exploit-development loldrivers edr-killer kernel-driver

Rust

Updated: 2 days, 7 hours ago

814 stars 121 fork 121 watcher

Born at : Dec. 5, 2023, 2:52 p.m. This repo has been linked 8 different CVEs too.

GhostTroops/TOP

TOP All bugbounty pentesting CVE-2023- POC Exp RCE example payload Things

bugbounty cve exp exploit payload poc rce vulnerability

Shell

Updated: 2 weeks, 4 days ago

730 stars 124 fork 124 watcher

Born at : March 19, 2022, 1:54 a.m. This repo has been linked 296 different CVEs too.

nomi-sec/PoC-in-GitHub

📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.

security cve exploit poc vulnerability

Updated: 2 weeks, 3 days ago

7810 stars 1261 fork 1261 watcher

Born at : Dec. 8, 2019, 1:03 p.m. This repo has been linked 718 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-3609 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-3609 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

May. 13, 2026

Action	Type	Old Value	New Value
Added	CVSS V3.1		AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Added	Reference		https://blacksnufkin.github.io/posts/AntiCheat-LPE-CVE-2026-3609/

Initial Analysis by [email protected]