OnlyFm252
Windows Kernel

CVE-2023-35633 — Windows Kernel Elevation of Privilege Vulnerability

Important CVSS 7.8 EPSS 0.08698 2023-12 archive

Executive Summary

None

Overview

7.8
CVSS HIGH
Important
MS Severity
Not Exploited
MS Exploit Status
More Likely
MS Exploit Likelihood
Category Elevation of Privilege
Released Dec 12 2023
Last Updated Dec 12 2023
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.08698 — 0.94448 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

0.08698
probability of exploitation in the next 30 days
0.94448 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

6 affected products
Product KB Article Severity Impact Restart Required
Windows 10 for 32-bit Systems 5033379 (Security Update) Important Elevation of Privilege Yes
Windows 10 for x64-based Systems 5033379 (Security Update) Important Elevation of Privilege Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 5033422 (Monthly Rollup) 5033427 (Security Only) Important Elevation of Privilege 5032254 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 6.0.6003.22413 Yes 5033422 5033427 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5033422 (Monthly Rollup) 5033427 (Security Only) Important Elevation of Privilege 5032254 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 6.0.6003.22413 Yes 5033422 5033427 Windows Server 2008 for x64-based Systems Service Pack 2 5033422 (Monthly Rollup) 5033427 (Security Only) Important Elevation of Privilege 5032254 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 6.0.6003.22413 Yes 5033422 5033427 Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5033422 (Monthly Rollup) 5033427 (Security Only) Important Elevation of Privilege 5032254 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 6.0.6003.22413 Yes 5033422 5033427 Windows Server 2008 R2 for x64-based Systems Service Pack 1 5033433 (Monthly Rollup) 5033424 (Security Only) Important Elevation of Privilege 5032252 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 6.1.7601.26864 Yes 5033433 5033424 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5033433 (Monthly Rollup) 5033424 (Security Only) Important Elevation of Privilege 5032252 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 6.1.7601.26864 Yes 5033433 5033424 Windows Server 2012 5033429 (Monthly Rollup) Important Elevation of Privilege Yes
Windows Server 2012 (Server Core installation) 5033429 (Monthly Rollup) Important Elevation of Privilege Yes
Windows Server 2012 R2 5033420 (Monthly Rollup) Important Elevation of Privilege Yes
Windows Server 2012 R2 (Server Core installation) 5033420 (Monthly Rollup) Important Elevation of Privilege Yes

Patches

3 patches
Article Type Restart
5033379 Security Update Yes
5033429 Monthly Rollup Yes
5033420 Monthly Rollup Yes

Known Exploits

Acknowledgments

Google Project Zero

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