CVE-2025-21359 — Windows Kernel Security Feature Bypass Vulnerability

Executive Summary

None

Overview

7.8

CVSS HIGH

Important

MS Severity

Not Exploited

MS Exploit Status

Less Likely

MS Exploit Likelihood

Category Security Feature Bypass

Weakness CWE-284: Improper Access Control

Released Feb 11 2025

Last Updated Feb 11 2025

Publicly Disclosed No

CISA KEV Not Listed

Known Exploits None Known

EPSS Score 0.00555 — 0.42982 percentile

NVD CVSS 7.8 HIGH — matches MSRC

CVSS Vector

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

ATTACK VECTOR

Local

ATTACK COMPLEXITY

Low

PRIVILEGES REQUIRED

Low

USER INTERACTION

None

SCOPE

Unchanged

CONFIDENTIALITY

High

INTEGRITY

High

AVAILABILITY

High

EXPLOIT CODE MATURITY

Unproven

REMEDIATION LEVEL

Official Fix

REPORT CONFIDENCE

Confirmed

Temporal Score: 6.8

EPSS Score

0.00555

probability of exploitation in the next 30 days

0.42982 percentile - updated 2026-07-25

View on FIRST.org

Affected Products

25 affected products

Product	KB Article	Severity	Impact	Restart Required
Windows 10 for 32-bit Systems	`5052040 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 for x64-based Systems	`5052040 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 1607 for 32-bit Systems	`5052006 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 1607 for x64-based Systems	`5052006 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 1809 for 32-bit Systems	`5052000 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 1809 for x64-based Systems	`5052000 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 21H2 for 32-bit Systems	`5051974 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 21H2 for ARM64-based Systems	`5051974 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 21H2 for x64-based Systems	`5051974 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 22H2 for 32-bit Systems	`5051974 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 22H2 for ARM64-based Systems	`5051974 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 10 Version 22H2 for x64-based Systems	`5051974 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 11 Version 22H2 for ARM64-based Systems	`5051989 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 11 Version 22H2 for x64-based Systems	`5051989 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 11 Version 23H2 for ARM64-based Systems	`5051989 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 11 Version 23H2 for x64-based Systems	`5051989 (Security Update)`	Important	Security Feature Bypass	Yes
Windows 11 Version 24H2 for ARM64-based Systems 5051987 (Security Update) 5052105 (SecurityHotpatchUpdate) Important Security Feature Bypass 5050009 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 10.0.26100.3194 10.0.26100.3107 Yes None Windows 11 Version 24H2 for x64-based Systems 5051987 (Security Update) 5052105 (SecurityHotpatchUpdate) Important Security Feature Bypass 5050009 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 10.0.26100.3194 10.0.26100.3107 Yes None Windows Server 2008 for 32-bit Systems Service Pack 2 5052038 (Monthly Rollup) 5052072 (Security Only) Important Security Feature Bypass 5050063 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.23117 Yes None Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5052038 (Monthly Rollup) 5052072 (Security Only) Important Security Feature Bypass 5050063 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.23117 Yes None Windows Server 2008 for x64-based Systems Service Pack 2 5052038 (Monthly Rollup) 5052072 (Security Only) Important Security Feature Bypass 5050063 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.23117 Yes None Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5052038 (Monthly Rollup) 5052072 (Security Only) Important Security Feature Bypass 5050063 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.0.6003.23117 Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 5052016 (Monthly Rollup) 5052032 (Security Only) Important Security Feature Bypass 5050049 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.1.7601.27566 Yes None Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5052016 (Monthly Rollup) 5052032 (Security Only) Important Security Feature Bypass 5050049 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 6.1.7601.27566 Yes None Windows Server 2012	`5052020 (Monthly Rollup)`	Important	Security Feature Bypass	Yes
Windows Server 2012 (Server Core installation)	`5052020 (Monthly Rollup)`	Important	Security Feature Bypass	Yes
Windows Server 2012 R2	`5052042 (Monthly Rollup)`	Important	Security Feature Bypass	Yes
Windows Server 2012 R2 (Server Core installation)	`5052042 (Monthly Rollup)`	Important	Security Feature Bypass	Yes
Windows Server 2016	`5052006 (Security Update)`	Important	Security Feature Bypass	Yes
Windows Server 2016 (Server Core installation)	`5052006 (Security Update)`	Important	Security Feature Bypass	Yes
Windows Server 2019	`5052000 (Security Update)`	Important	Security Feature Bypass	Yes
Windows Server 2019 (Server Core installation)	`5052000 (Security Update)`	Important	Security Feature Bypass	Yes
Windows Server 2022 5051979 (Security Update) 5052106 (SecurityHotpatchUpdate) Important Security Feature Bypass 5049983 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 10.0.20348.3207 10.0.20348.3148 Yes None Windows Server 2022 (Server Core installation) 5051979 (Security Update) 5052106 (SecurityHotpatchUpdate) Important Security Feature Bypass 5049983 Base: 7.8 Temporal: 6.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C 10.0.20348.3207 10.0.20348.3148 Yes None Windows Server 2022, 23H2 Edition (Server Core installation)	`5051980 (Security Update)`	Important	Security Feature Bypass	Yes

Patches

8 patches

Article	Type	Restart
`5052040`	Security Update	Yes
`5052006`	Security Update	Yes
`5052000`	Security Update	Yes
`5051974`	Security Update	Yes
`5051989`	Security Update	Yes
`5052020`	Monthly Rollup	Yes
`5052042`	Monthly Rollup	Yes
`5051980`	Security Update	Yes

Known Exploits

No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.

Acknowledgments

hazard
Varun Goel from Microsoft
MORSE

References

MSRC Advisory MITRE NVD