CISA KEV · Known exploitedHigh

CVE-2022-26923

Microsoft Active Directory

CVE-2022-26923 affects Microsoft Active Directory. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

CVSS: 8.8
EPSS: 83.0%
CISA KEV: Listed
Published: 2022.05.11

PRIORITY ASSESSMENT

Immediate review

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

Known exploitationConfirmed by CISA KEV

Exploit probability83.0%

Technical severityCVSS 8.8

Vulnerability overview

CVE-2022-26923 affects Microsoft Active Directory. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

Affected product and versions

Product: Microsoft Active Directory
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, 6.3.0, 6.3.9600.0, < 10.0.10240.19297, < 10.0.14393.5850, < 10.0.17763.4252, < 10.0.18363.2274, < 10.0.19042.1706, < 10.0.19043.1706, < 10.0.19044.1706, < 10.0.22000.1817, r2, < 10.0.20348.1668
Fixed versions: 10.0.10240.19297, 10.0.14393.5850, 10.0.17763.4252, 10.0.18363.2274, 10.0.19042.1706, 10.0.19043.1706, 10.0.19044.1706, 10.0.22000.1817, 10.0.20348.1668

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply updates per vendor instructions.

Due date: 2022.09.08

1
Identify
Confirm that Microsoft Active Directory 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:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-295
KEV added: 2022.08.18
Ransomware use: 미확인