WinFSP vulnerabilities

🔔 Create alert RSS

Published CVEs affecting WinFSP products: 3 record(s), with severity, exploitation and fixes.

Exploited only (KEV) →

CVE-2026-93689 Medium · 5.5 CWE-476 Sep 18, 2026

WinFsp through 2.2.26215 NULL Pointer Dereference via Fast I/O

WinFsp through 2.2.26215 contains a null pointer dereference vulnerability in the kernel driver's Fast I/O device control handler that fails to validate the volume context before use. An unprivileged local user can trigger a denial of service by opening the WinFsp control device and issuing FSP_IOCTL_TRANSACT requests, causing a system crash.

CVE-2026-7162 High · 7.8 CWE-190 Jul 13, 2026

Integer Overflow or Wraparound in WinFSP

Successful exploitation of the integer overflow vulnerability could allow an attacker to achieve system-level access to the affected software.

CVE-2026-3006 High · 7.0 CWE-362 Apr 27, 2026

Race Condition Vulnerability

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.