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Windows Win32 Kernel Subsystem

CVE-2025-24983 — Windows Win32 Kernel Subsystem Elevation of Privilege Vulnerability

Important CVSS 7 EPSS 0.01267 ⚠️ Exploited in the wild 2025-03 archive

Executive Summary

Use after free in Windows Win32 Kernel Subsystem allows an authorized attacker to elevate privileges locally.

Overview

7
CVSS HIGH
Important
MS Severity
Exploited
MS Exploit Status
Exploitation Detected
MS Exploit Likelihood
Category Elevation of Privilege
Released Mar 11 2025
Last Updated Mar 11 2025
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.01267 — 0.65924 percentile
NVD CVSS 7 HIGH — matches MSRC

CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
High
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
High
AVAILABILITY
High
EXPLOIT CODE MATURITY
Functional
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 6.5

EPSS Score

0.01267
probability of exploitation in the next 30 days
0.65924 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

10 affected products
Product KB Article Severity Impact Restart Required
Windows 10 for 32-bit Systems 5053618 (Security Update) Important Elevation of Privilege Yes
Windows 10 for x64-based Systems 5053618 (Security Update) Important Elevation of Privilege Yes
Windows 10 Version 1607 for 32-bit Systems 5053594 (Security Update) Important Elevation of Privilege Yes
Windows 10 Version 1607 for x64-based Systems 5053594 (Security Update) Important Elevation of Privilege Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 5053888 (Monthly Rollup) 5053995 (Security Only) Important Elevation of Privilege 5052038 Base: 7.0 Temporal: 6.5 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C 6.0.6003.23168 Yes None Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5053888 (Monthly Rollup) 5053995 (Security Only) Important Elevation of Privilege 5052038 Base: 7.0 Temporal: 6.5 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C 6.0.6003.23168 Yes None Windows Server 2008 for x64-based Systems Service Pack 2 5053888 (Monthly Rollup) 5053995 (Security Only) Important Elevation of Privilege 5052038 Base: 7.0 Temporal: 6.5 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C 6.0.6003.23168 Yes None Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5053888 (Monthly Rollup) 5053995 (Security Only) Important Elevation of Privilege 5052038 Base: 7.0 Temporal: 6.5 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C 6.0.6003.23168 Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 5053620 (Monthly Rollup) 5053627 (Security Only) Important Elevation of Privilege 5052016 Base: 7.0 Temporal: 6.5 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C 6.1.7601.27618 Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5053620 (Monthly Rollup) 5053627 (Security Only) Important Elevation of Privilege 5052016 Base: 7.0 Temporal: 6.5 Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C 6.1.7601.27618 Yes None Windows Server 2012 5053886 (Monthly Rollup) Important Elevation of Privilege Yes
Windows Server 2012 (Server Core installation) 5053886 (Monthly Rollup) Important Elevation of Privilege Yes
Windows Server 2012 R2 5053887 (Monthly Rollup) Important Elevation of Privilege Yes
Windows Server 2012 R2 (Server Core installation) 5053887 (Monthly Rollup) Important Elevation of Privilege Yes
Windows Server 2016 5053594 (Security Update) Important Elevation of Privilege Yes
Windows Server 2016 (Server Core installation) 5053594 (Security Update) Important Elevation of Privilege Yes

Patches

4 patches
Article Type Restart
5053618 Security Update Yes
5053594 Security Update Yes
5053886 Monthly Rollup Yes
5053887 Monthly Rollup Yes

Known Exploits

Acknowledgments

ESET

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