CISA KEV · Known exploitedHigh

CVE-2023-36874

Microsoft Windows

CVE-2023-36874 affects Microsoft Windows. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

CVSS: 7.8
EPSS: 43.4%
CISA KEV: Listed
Published: 2023.07.12

PRIORITY ASSESSMENT

Immediate review

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

Known exploitationConfirmed by CISA KEV

Exploit probability43.4%

Technical severityCVSS 7.8

Vulnerability overview

CVE-2023-36874 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, 10.0.22621.0, 10.0.19045.0, 10.0.10240.0, 10.0.14393.0, 6.0.6003.0, 6.1.7601.0, 6.2.9200.0, 6.3.9600.0, < 10.0.10240.20048, < 10.0.14393.6085, < 10.0.17763.4645, < 10.0.19041.3208, < 10.0.19045.3208, < 10.0.22000.2176, < 10.0.22621.1992, r2
Fixed versions: 10.0.10240.20048, 10.0.14393.6085, 10.0.17763.4645, 10.0.19041.3208, 10.0.19045.3208, 10.0.22000.2176, 10.0.22621.1992, 10.0.20348.1850

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

Due date: 2023.08.01

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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-59
KEV added: 2023.07.11
Ransomware use: 미확인