Vulnerability Report

CVE-2026-34336

Title: Buffer Over-read in Windows DWM Core Library

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2026-34336.

CWE Category CWE-126

Published Date May 12, 2026

Modified Date Jun 01, 2026

Exploit Status Not Found

Score 7.8 CVSS v3.1

Exploit Probability (EPSS)

0.25%

Vulnerability Summary

CVE-2026-34336: Integer overflow or wraparound in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.

Impacted Vendors

Reference Links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34336

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-2026-34336 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

June 01, 2026 MODIFIED

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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.