Vulnerability Report

CVE-2026-40369

Title: Untrusted Pointer Dereference in Windows Kernel

Memory Corruption

Proof Of Concept

PoC Available for CVE-2026-40369

CWE Category CWE-822

Published Date May 12, 2026

Modified Date Jun 01, 2026

Exploit Status Available

Score 7.8 CVSS v3.1

Exploit Probability (EPSS)

3.52%

Vulnerability Summary

CVE-2026-40369: Heap-based buffer overflow in Windows Kernel allows an authorized attacker to elevate privileges locally.

Impacted Vendors

microsoft 4

Reference Links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-40369

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-2026-40369 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/orinimron123/CVE-2026-40369-EXPLOIT

View Code

June 01, 2026 MODIFIED

Vulnerability data updated via NVD.

May 14, 2026 MODIFIED

Vulnerability data updated via NVD.

May 13, 2026 MODIFIED

Vulnerability data updated via NVD.

May 12, 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.