CVE-2026-3609
HIGH
Published May 11, 2026
Modified May 13, 2026
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)
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CVSS v3.1 Score
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS — Exploit Prediction
0.0001
Probability of exploitation
0.00%
Percentile rank
EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.
Affected Products
| Vendor | Product |
|---|---|
| wellbia | xigncode3 |
References
Frequently Asked Questions
What is CVE-2026-3609? +
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) It has a CVSS v3.1 base score of 7.8 (HIGH).
How severe is CVE-2026-3609? +
CVE-2026-3609 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0001, placing it in the 0th percentile for exploitation probability.
What products are affected by CVE-2026-3609? +
CVE-2026-3609 affects products from wellbia, specifically: xigncode3. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2026-3609? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.