OnlyFm252
Windows Common Log File System Driver

CVE-2022-21998 — Windows Common Log File System Driver Information Disclosure Vulnerability

Important CVSS 5.5 EPSS 0.00778 2022-02 archive

Executive Summary

None

Overview

5.5
CVSS MEDIUM
Important
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
Category Information Disclosure
Released Feb 8 2022
Last Updated Feb 8 2022
Publicly Disclosed No
CISA KEV Not Listed
Known Exploits None Known
EPSS Score 0.00778 — 0.51028 percentile
NVD CVSS 5.5 MEDIUM — matches MSRC

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
ATTACK VECTOR
Local
ATTACK COMPLEXITY
Low
PRIVILEGES REQUIRED
Low
USER INTERACTION
None
SCOPE
Unchanged
CONFIDENTIALITY
High
INTEGRITY
None
AVAILABILITY
None
EXPLOIT CODE MATURITY
Unproven
REMEDIATION LEVEL
Official Fix
REPORT CONFIDENCE
Confirmed
Temporal Score: 4.8

EPSS Score

0.00778
probability of exploitation in the next 30 days
0.51028 percentile - updated 2026-06-21
View on FIRST.org

Affected Products

27 affected products
Product KB Article Severity Impact Restart Required
Windows 10 for 32-bit Systems 5010358 (Security Update) Important Information Disclosure Yes
Windows 10 for x64-based Systems 5010358 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1607 for 32-bit Systems 5010359 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1607 for x64-based Systems 5010359 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1809 for 32-bit Systems 5010351 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1809 for ARM64-based Systems 5010351 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1809 for x64-based Systems 5010351 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1909 for 32-bit Systems 5010345 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1909 for ARM64-based Systems 5010345 (Security Update) Important Information Disclosure Yes
Windows 10 Version 1909 for x64-based Systems 5010345 (Security Update) Important Information Disclosure Yes
Windows 10 Version 20H2 for 32-bit Systems 5010342 (Security Update) Important Information Disclosure Yes
Windows 10 Version 20H2 for ARM64-based Systems 5010342 (Security Update) Important Information Disclosure Yes
Windows 10 Version 20H2 for x64-based Systems 5010342 (Security Update) Important Information Disclosure Yes
Windows 10 Version 21H1 for 32-bit Systems 5010342 (Security Update) Important Information Disclosure Yes
Windows 10 Version 21H1 for ARM64-based Systems 5010342 (Security Update) Important Information Disclosure Yes
Windows 10 Version 21H1 for x64-based Systems 5010342 (Security Update) Important Information Disclosure Yes
Windows 10 Version 21H2 for 32-bit Systems 5010342 (Security Update) Important Information Disclosure Yes
Windows 10 Version 21H2 for ARM64-based Systems 5010342 (Security Update) Important Information Disclosure Yes
Windows 10 Version 21H2 for x64-based Systems 5010342 (Security Update) Important Information Disclosure Yes
Windows 11 version 21H2 for ARM64-based Systems 5010386 (Security Update) Important Information Disclosure Yes
Windows 11 version 21H2 for x64-based Systems 5010386 (Security Update) Important Information Disclosure Yes
Windows 7 for 32-bit Systems Service Pack 1 5010404 (Monthly Rollup) 5010422 (Security Only) Important Information Disclosure 5009610 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.1.7601.25860 Yes 5010404 5010422 Windows 7 for x64-based Systems Service Pack 1 5010404 (Monthly Rollup) 5010422 (Security Only) Important Information Disclosure 5009610 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.1.7601.25860 Yes 5010404 5010422 Windows 8.1 for 32-bit systems 5010419 (Monthly Rollup) 5010395 (Security Only) Important Information Disclosure 5009624 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.3.9600.20269 Yes 5010419 5010395 Windows 8.1 for x64-based systems 5010419 (Monthly Rollup) 5010395 (Security Only) Important Information Disclosure 5009624 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.3.9600.20269 Yes 5010419 5010395 Windows RT 8.1 5010419 (Monthly Rollup) Important Information Disclosure Yes
Windows Server 2008 for 32-bit Systems Service Pack 2 5010384 (Monthly Rollup) 5010403 (Security Only) Important Information Disclosure 5009627 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.0.6003.21374 6.0.6003.21372 Yes 5010384 5010403 Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) 5010384 (Monthly Rollup) 5010403 (Security Only) Important Information Disclosure 5009627 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.0.6003.21374 6.0.6003.21372 Yes 5010384 5010403 Windows Server 2008 for x64-based Systems Service Pack 2 5010384 (Monthly Rollup) 5010403 (Security Only) Important Information Disclosure 5009627 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.0.6003.21374 6.0.6003.21372 Yes 5010384 5010403 Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) 5010384 (Monthly Rollup) 5010403 (Security Only) Important Information Disclosure 5009627 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.0.6003.21374 6.0.6003.21372 Yes 5010384 5010403 Windows Server 2008 R2 for x64-based Systems Service Pack 1 5010404 (Monthly Rollup) 5010422 (Security Only) Important Information Disclosure 5009610 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.1.7601.25860 Yes 5010404 5010422 Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 5010404 (Monthly Rollup) 5010422 (Security Only) Important Information Disclosure 5009610 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.1.7601.25860 Yes 5010404 5010422 Windows Server 2012 5010392 (Monthly Rollup) 5010412 (Security Only) Important Information Disclosure 5009586 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.2.9200.23605 Yes 5010392 5010412 Windows Server 2012 (Server Core installation) 5010392 (Monthly Rollup) 5010412 (Security Only) Important Information Disclosure 5009586 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.2.9200.23605 Yes 5010392 5010412 Windows Server 2012 R2 5010419 (Monthly Rollup) 5010395 (Security Only) Important Information Disclosure 5009624 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.3.9600.20269 Yes 5010419 5010395 Windows Server 2012 R2 (Server Core installation) 5010419 (Monthly Rollup) 5010395 (Security Only) Important Information Disclosure 5009624 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 6.3.9600.20269 Yes 5010419 5010395 Windows Server 2016 5010359 (Security Update) Important Information Disclosure Yes
Windows Server 2016 (Server Core installation) 5010359 (Security Update) Important Information Disclosure Yes
Windows Server 2019 5010351 (Security Update) Important Information Disclosure Yes
Windows Server 2019 (Server Core installation) 5010351 (Security Update) Important Information Disclosure Yes
Windows Server 2022 5010354 (Security Update) 5010456 (Security Hotpatch Update) Important Information Disclosure 5009555 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 10.0.20348.524 10.0.20348.525 Yes 5010354 Windows Server 2022 (Server Core installation) 5010354 (Security Update) 5010456 (Security Hotpatch Update) Important Information Disclosure 5009555 Base: 5.5 Temporal: 4.8 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C 10.0.20348.524 10.0.20348.525 Yes 5010354 Windows Server, version 20H2 (Server Core Installation) 5010342 (Security Update) Important Information Disclosure Yes

Patches

7 patches
Article Type Restart
5010358 Security Update Yes
5010359 Security Update Yes
5010351 Security Update Yes
5010345 Security Update Yes
5010342 Security Update Yes
5010386 Security Update Yes
5010419 Monthly Rollup Yes

Known Exploits

Acknowledgments

Anonymous

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