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CVE-2022-26923

Microsoft Active Directory Domain Services Privilege Escalation

8.8 HIGHActively exploited (CISA KEV)EPSS 83.5%
  1. Published10 May 2022
  2. Added to CISA KEV18 Aug 2022
  3. Remediation due8 Sept 2022
Actively exploited (CISA KEV)

An authenticated user could manipulate attributes on computer accounts they own or manage, and acquire a certificate from Active Directory Certificate Services that would allow for privilege escalation to SYSTEM.

Added to KEV: 18 Aug 2022Federal remediation due: 8 Sept 2022

Description

Active Directory Domain Services Elevation of Privilege Vulnerability

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Microsoft Windows 10 1507< 10.0.10240.19297
Microsoft Windows 10 1607< 10.0.14393.5850
Microsoft Windows 10 1809< 10.0.17763.4252
Microsoft Windows 10 1909< 10.0.18363.2274
Microsoft Windows 10 20h2< 10.0.19042.1706
Microsoft Windows 10 21h1< 10.0.19043.1706
Microsoft Windows 10 21h2< 10.0.19044.1706
Microsoft Windows 11 21h2< 10.0.22000.1817
Microsoft Windows 8.1all versions
Microsoft Windows Rt 8.1all versions
Microsoft Windows Server 2012r2
Microsoft Windows Server 2016< 10.0.14393.5850
Microsoft Windows Server 2019< 10.0.17763.4252
Microsoft Windows Server 2022< 10.0.20348.1668

Remediation

Fixed in
Microsoft Windows 10 1507≥ 10.0.10240.19297
Microsoft Windows 10 1607≥ 10.0.14393.5850
Microsoft Windows 10 1809≥ 10.0.17763.4252
Microsoft Windows 10 1909≥ 10.0.18363.2274
Microsoft Windows 10 20h2≥ 10.0.19042.1706
Microsoft Windows 10 21h1≥ 10.0.19043.1706
Microsoft Windows 10 21h2≥ 10.0.19044.1706
Microsoft Windows 11 21h2≥ 10.0.22000.1817
Microsoft Windows Server 2016≥ 10.0.14393.5850
Microsoft Windows Server 2019≥ 10.0.17763.4252

References

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Frequently asked

Is CVE-2022-26923 being actively exploited?

Yes. CVE-2022-26923 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 18 Aug 2022.

How severe is CVE-2022-26923?

CVE-2022-26923 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 83.5% probability of exploitation.

Which products are affected by CVE-2022-26923?

Affected products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 1909, Microsoft Windows 10 20h2, and 9 more.

How do I fix CVE-2022-26923?

Upgrade affected software to a fixed version, for example Microsoft Windows 10 1507 10.0.10240.19297, Microsoft Windows 10 1607 10.0.14393.5850, Microsoft Windows 10 1809 10.0.17763.4252 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2022-26923 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.