CVE Watch—

CVE-2025-30400

Microsoft Windows DWM Core Library Use-After-Free Vulnerability

CVSS

—

No CVSS

EPSS

1.8%

p76

KEV

YES

May 13, 2025

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

1.8%EPSS · 30 days1.8%

2026-06-302026-07-17

KEV catalog record

Product

Microsoft / Windows

Vulnerability

Microsoft Windows DWM Core Library Use-After-Free Vulnerability

Added to KEV

May 13, 2025

Remediate by

Jun 3, 2025

Known ransomware use

Summary description

Microsoft Windows DWM Core Library contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally.

Required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-30400 ; https://nvd.nist.gov/vuln/detail/CVE-2025-30400

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