How severe is CVE-2026-3609?

CVE-2026-3609 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-3609 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-3609?

CVE-2026-3609 affects Wellbia Xigncode3. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-3609?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-3609 have an EU (EUVD) identifier?

Yes. CVE-2026-3609 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29110.

When was CVE-2026-3609 published?

CVE-2026-3609 was published on 2026-05-11 and last updated on 2026-06-17.

CVE-2026-3609

CVE-2026-3609 is a high-severity vulnerability in Wellbia Xigncode3 with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-29110
Affected product: Wellbia Xigncode3
Published: 2026-05-11
Last modified: 2026-06-17

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)

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)
How severe is CVE-2026-3609?: CVE-2026-3609 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-3609 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3609?: CVE-2026-3609 affects Wellbia Xigncode3. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-3609?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-3609 have an EU (EUVD) identifier?: Yes. CVE-2026-3609 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-29110.
When was CVE-2026-3609 published?: CVE-2026-3609 was published on 2026-05-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wellbia:xigncode3:10.0.10011.16384:*:*:*:*:*:*:*