CVE-2025-21184

20

FAUCET Score

CVE-2025-21184 is a Windows Core Messaging Elevation of Privileges vulnerability affecting Microsoft products. It carries a high CVSS score of 7.0, indicating a significant risk where a low-privileged attacker can achieve high impact on confidentiality, integrity, and availability with high attack complexity. While there is no known active exploitation, public exploit code, or KEV listing, the vulnerability has garnered notable community discussion and media coverage, suggesting awareness within the cybersecurity landscape.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 10.0.10240.20915CPE matchmatch criteria	cpe:2.3:o:microsoft:windows_10_1507:::::::x64:*
		< 10.0.10240.20915CPE matchmatch criteria	cpe:2.3:o:microsoft:windows_10_1507:::::::x86:*
		< 10.0.14393.7785CPE matchmatch criteria	cpe:2.3:o:microsoft:windows_10_1607:::::::x64:*
		< 10.0.14393.7785CPE matchmatch criteria	cpe:2.3:o:microsoft:windows_10_1607:::::::x86:*
		< 10.0.17763.6893CPE matchmatch criteria	cpe:2.3:o:microsoft:windows_10_1809:::::::x64:*

CVSS Data

CVSS version used by this source: 3.1

7.0HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

Exploitability Score

1.0

Impact Score

5.9

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.60%

Probability of exploitation in next 30 days

EPSS Percentile

45.1%

Percentile rank of EPSS score among Peer Group

As of 2026-07-28

Model: v2026.06.15

This CVE's current EPSS score of 0.0060 is in the 83rd percentile among its peer group of 1,525 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.4 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (34)

microsoftpatch availablevia nvd_reference

microsoftpatch availablevia msrc

Product: Windows 10 Version 1809 for 32-bit SystemsFixed in: 10.0.17763.6893

microsoftpatch availablevia msrc

Product: Windows 10 Version 1809 for x64-based SystemsFixed in: 10.0.17763.6893

microsoftpatch availablevia msrc

Product: Windows Server 2019Fixed in: 10.0.17763.6893

microsoftpatch availablevia msrc

Product: Windows Server 2019 (Server Core installation)Fixed in: 10.0.17763.6893

microsoftpatch availablevia msrc

Product: Windows Server 2022Fixed in: 10.0.20348.3207

microsoftpatch availablevia msrc

Product: Windows Server 2022 (Server Core installation)Fixed in: 10.0.20348.3207

microsoftpatch availablevia msrc

Product: Windows Server 2022Fixed in: 10.0.20348.3148

microsoftpatch availablevia msrc

Product: Windows Server 2022 (Server Core installation)Fixed in: 10.0.20348.3148

microsoftpatch availablevia msrc

Product: Windows 10 Version 21H2 for 32-bit SystemsFixed in: 10.0.19044.5487

microsoftpatch availablevia msrc

Product: Windows 10 Version 21H2 for ARM64-based SystemsFixed in: 10.0.19044.5487

microsoftpatch availablevia msrc

Product: Windows 10 Version 21H2 for x64-based SystemsFixed in: 10.0.19044.5487

microsoftpatch availablevia msrc

Product: Windows 11 Version 22H2 for ARM64-based SystemsFixed in: 10.0.22621.4890

microsoftpatch availablevia msrc

Product: Windows 11 Version 22H2 for x64-based SystemsFixed in: 10.0.22621.4890

microsoftpatch availablevia msrc

Product: Windows 10 Version 22H2 for x64-based SystemsFixed in: 10.0.19045.5487

microsoftpatch availablevia msrc

Product: Windows 10 Version 22H2 for ARM64-based SystemsFixed in: 10.0.19045.5487

microsoftpatch availablevia msrc

Product: Windows 10 Version 22H2 for 32-bit SystemsFixed in: 10.0.19045.5487

microsoftpatch availablevia msrc

Product: Windows Server 2025 (Server Core installation)Fixed in: 10.0.26100.3194

microsoftpatch availablevia msrc

Product: Windows 11 Version 24H2 for ARM64-based SystemsFixed in: 10.0.26100.3194

microsoftpatch availablevia msrc

Product: Windows 11 Version 24H2 for x64-based SystemsFixed in: 10.0.26100.3194

microsoftpatch availablevia msrc

Product: Windows Server 2025Fixed in: 10.0.26100.3194

microsoftpatch availablevia msrc

Product: Windows Server 2025 (Server Core installation)Fixed in: 10.0.26100.3107

microsoftpatch availablevia msrc

Product: Windows 11 Version 24H2 for ARM64-based SystemsFixed in: 10.0.26100.3107

microsoftpatch availablevia msrc

Product: Windows 11 Version 24H2 for x64-based SystemsFixed in: 10.0.26100.3107

microsoftpatch availablevia msrc

Product: Windows Server 2025Fixed in: 10.0.26100.3107

microsoftpatch availablevia msrc

Product: Windows 11 Version 23H2 for ARM64-based SystemsFixed in: 10.0.22631.4890

microsoftpatch availablevia msrc

Product: Windows 11 Version 23H2 for x64-based SystemsFixed in: 10.0.22631.4890

microsoftpatch availablevia msrc

Product: Windows Server 2022, 23H2 Edition (Server Core installation)Fixed in: 10.0.25398.1425

microsoftpatch availablevia msrc

Product: Windows 10 for 32-bit SystemsFixed in: 10.0.10240.20915

microsoftpatch availablevia msrc

Product: Windows 10 for x64-based SystemsFixed in: 10.0.10240.20915

microsoftpatch availablevia msrc

Product: Windows 10 Version 1607 for 32-bit SystemsFixed in: 10.0.14393.7785

microsoftpatch availablevia msrc

Product: Windows 10 Version 1607 for x64-based SystemsFixed in: 10.0.14393.7785

microsoftpatch availablevia msrc

Product: Windows Server 2016Fixed in: 10.0.14393.7785

microsoftpatch availablevia msrc

Product: Windows Server 2016 (Server Core installation)Fixed in: 10.0.14393.7785

Vendor Advisories (1)

microsoft2025-Feb/CVE-2025-21184Important

Windows Core Messaging Elevation of Privileges Vulnerability

References

msrc.microsoft.com / update-guide/vulnerability/CVE-2025-21184

PatchVendor Advisory