Review reviewHigh

CVE-2026-3609

Wellbia XIGNCODE3, xigncode3

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: 7.8
EPSS: 0.19%
CISA KEV: Not listed
Published: 2026.05.12

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.19%

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Wellbia XIGNCODE3, xigncode3
Affected versions: >= 10.0.10011.16384 <= 2023.12.7.78, 10.0.10011.16384
Fixed versions: No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Wellbia XIGNCODE3, xigncode3 and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: Not available