TI-2026-02595 Aliases CVE-2026-3006 GHSA-799v-78v3-96jc

Race condition in WinFSP

LOW 32CWE-362Published 2026-04-27 · Updated 2026-07-15

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: High
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00142 3rd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
WinFSP	WinFSP	up to 2.1.25156	—	No fix listed	CNA

WinFSP VendorWinFSP Affected up to 2.1.25156 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Not affected: 1 product

Red Hat Advanced Cluster Management for Kubernetes 2

Timeline

2026-10-02 Threatist record created from CVE-2026-3006
2026-10-03 Alias added: GHSA-799v-78v3-96jc

References

Other 2

TI-2026-06285 Integer overflow in WinFsp CVSS 3.1HIGH 7.8
TI-2026-63100 WinFsp through 2.2.26215 NULL Pointer Dereference via Fast I/O CVSS 4.0MEDIUM 6.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences