CISA KEV · Known exploitedMedium

CVE-2022-41091

Microsoft Windows

CVE-2022-41091 affects Microsoft Windows. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

CVSS: 5.4
EPSS: 1.99%
CISA KEV: Listed
Published: 2022.11.10

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability1.99%

Technical severityCVSS 5.4

Vulnerability overview

CVE-2022-41091 affects Microsoft Windows. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

Affected product and versions

Product: Microsoft Windows
Affected versions: 10.0.17763.0, 10.0.0, 10.0.20348.0, 10.0.19043.0, 10.0.10240.0, 10.0.14393.0, 10.0.22621.0, 10.0.19045.0, < 10.0.10240.19567, < 10.0.14393.5501, < 10.0.17763.3650, < 10.0.19042.2251, < 10.0.19043.2251, < 10.0.19044.2251, < 10.0.19045.2251, < 10.0.22000.1219, < 10.0.22621.819, < 10.0.20348.1249
Fixed versions: 10.0.10240.19567, 10.0.14393.5501, 10.0.17763.3650, 10.0.19042.2251, 10.0.19043.2251, 10.0.19044.2251, 10.0.19045.2251, 10.0.22000.1219, 10.0.22621.819, 10.0.20348.1249

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2022.12.09

1
Identify
Confirm that Microsoft Windows and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
CWE: CWE-863
KEV added: 2022.11.08
Ransomware use: 확인됨