What is CVE-2026-3006?

CVE-2026-3006 is a high-severity vulnerability in Winfsp, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2026-04-27.

How severe is CVE-2026-3006?

High severity. CVSS v3 base score is 7.0 out of 10.

Vulnerability in Winfsp

CVE-2026-3006

Successful exploitation of the race condition vulnerability could allow an attacker to trigger a kernel heap overflow, potentially leading to local privilege escalation and granting system-level access to the affected software.

Vulnerability class: Race Condition

EPSS: 0.001 (1.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Winfsp — versions 2.1.25156 and lower

Weakness classification (CWE)

CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition)
CWE-368

References

5f57b9bf-260d-4433-bf07-b6a79e9bb7d4
5f57b9bf-260d-4433-bf07-b6a79e9bb7d4
0b0ca135-0b70-47e7-9f44-1890c2a1c46c
0b0ca135-0b70-47e7-9f44-1890c2a1c46c
0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Frequently asked questions

What is CVE-2026-3006?: CVE-2026-3006 is a high-severity vulnerability in Winfsp, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 7.0/10. Published 2026-04-27.
How severe is CVE-2026-3006?: High severity. CVSS v3 base score is 7.0 out of 10.