CVE-2025-30400
Microsoft DWM Core Library Elevation of Privilege Vulnerability
CVE-2025-30400 is a high vulnerability (CVSS 7.8) in Microsoft Windows, published May 13, 2025. CISA lists it as known to be exploited, since May 13, 2025. EUVD reports exploitation since May 13, 2025. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.93%, the 80th percentile. No source names a fixed version.
- Severity
- 7.8 HighCVSS 3.1, CVE List
- Exploit chance
- 1.93%EPSS, 80th percentile
- Exploitation
- ExploitedCISA KEV,
- Fixed in
- No fix listedNo source names one
Description
Use after free in Windows DWM allows an authorized attacker to elevate privileges locally.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
Affected products
- microsoft windows
- microsoft windows 10 version 1809
- microsoft windows 10 version 21h2
- microsoft windows 10 version 22h2
- microsoft windows 11 version 22h2
- microsoft windows 11 version 22h3
- microsoft windows 11 version 23h2
- microsoft windows 11 version 24h2
- microsoft windows server 2019
- microsoft windows server 2019 (server core installation)
- microsoft windows server 2022
- microsoft windows server 2022, 23h2 edition (server core installation)
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | encrypter15/CVE-2025-30400 | 2025-05-23 |
What each source reports
CVE List Score used
Microsoft DWM Core Library Elevation of Privilege Vulnerability
Use after free in Windows DWM allows an authorized attacker to elevate privileges locally.
- Record
CVE-2025-30400- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C - Weakness
- CWE-416
- Updated
- 2026-11-02
EUVDEUVD-2025-14444
Use after free in Windows DWM allows an authorized attacker to elevate privileges locally.
- Record
EUVD-2025-14444- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-vvr8-g6jj-jwrw
Use after free in Windows DWM allows an authorized attacker to elevate privileges locally.
Use after free in Windows DWM allows an authorized attacker to elevate privileges locally.
- Record
GHSA-vvr8-g6jj-jwrw- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
CISA KEVNo score
Microsoft Windows DWM Core Library Use-After-Free Vulnerability
Microsoft Windows DWM Core Library contains a use-after-free vulnerability that allows an authorized attacker to elevate privileges locally.
- Record
CVE-2025-30400- Weakness
- CWE-416
- Updated
- 2026-11-02
NVD
Use after free in Windows DWM allows an authorized attacker to elevate privileges locally.
- Record
CVE-2025-30400- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| exploitation | ||
| first indexed | CVE List, EUVD, GitHub Advisories, CISA KEV, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.