SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2022-26923

Microsoft Active Directory Domain Services Privilege Escalation Vulnerability

KEVHIGH 8.8EPSS 83.5%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 8 September 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

Active Directory Domain Services Elevation of Privilege Vulnerability

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
83.50% probability · 100th percentile
CISA KEV
Listed 18 August 2022 · due 8 September 2022
Weakness
CWE-295
Affected
microsoft/windows 10 1507 · microsoft/windows 10 1607 · microsoft/windows 10 1809 · microsoft/windows 10 1909 · microsoft/windows 10 20h2 · microsoft/windows 10 21h1 · microsoft/windows 10 21h2 · microsoft/windows 11 21h2 · microsoft/windows 8.1 · microsoft/windows rt 8.1 · microsoft/windows server 2012 · microsoft/windows server 2016 · microsoft/windows server 2019 · microsoft/windows server 2022
Source
secure@microsoft.com

CISA notes

Apply updates per vendor instructions. https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-26923; https://nvd.nist.gov/vuln/detail/CVE-2022-26923

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.