Vulnerability Report

CVE-2026-40409

Title: Windows UDFS EoP Vulnerability

EoP

Proof Of Concept

No public PoC currently indexed for CVE-2026-40409.

CWE Category CWE-197

Published Date Jun 09, 2026

Modified Date Jun 11, 2026

Exploit Status Not Found

Score 7.8 CVSS v3.1

Exploit Probability (EPSS)

0.24%

Vulnerability Summary

CVE-2026-40409: Windows Universal Disk Format File System Driver (UDFS) Elevation of Privilege Vulnerability

Impacted Vendors

microsoft 13

Reference Links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40409

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.8

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-40409 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 11, 2026 MODIFIED

Vulnerability data updated via NVD.

June 09, 2026 MODIFIED

Vulnerability data updated via NVD.

June 09, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector LOCAL

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.