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CVE-2025-30400 is an elevation-of-privilege vulnerability in the Windows Desktop Window Manager (DWM), also described as affecting the Microsoft DWM Core Library. The flaw is a use-after-free condition in DWM, with reporting indicating the vulnerable code path is in the DWM core component associated with window rendering and memory reference handling. By triggering the stale memory reference condition through crafted local interaction with the DWM compositor, an attacker can corrupt memory and elevate privileges. Microsoft described the issue as allowing an authorized attacker to elevate privileges locally, and multiple reports state successful exploitation can result in execution with NT AUTHORITY\SYSTEM privileges. The vulnerability was reported as actively exploited in the wild at the time of patch release.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
All candidate exploits were filtered out by Mallory's validation.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
31 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An elevation of privilege vulnerability in Microsoft DWM Core Library reported as exploited and included in CISA KEV.
An elevation of privilege vulnerability in the Microsoft DWM Core Library explicitly listed as under exploitation in the wild.
A Microsoft Windows vulnerability that has been actively exploited in the wild as of May 2025.
Windows Desktop Window Manager (DWM) use-after-free leading to elevation of privilege.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.