CVEs / CVE-2022-26923
CVE-2022-26923: Microsoft Active Directory Domain Services Privilege Escalation Vulnerability
- Known exploited in the CISA KEV catalog since 18 Aug 2022
- high 9 CVSS 2.0 (NVD)
- EPSS 83.5% chance of exploitation in the next 30 days, higher than 99% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
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.
Description
Active Directory Domain Services Elevation of Privilege Vulnerability
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Windows 10 Version 1809 | from 10.0.17763.0, before 10.0.17763.4252 | 10.0.17763.4252 |
| Microsoft Windows 10 Version 1809 | from 10.0.0, before 10.0.17763.4252 | 10.0.17763.4252 |
| Microsoft Windows Server 2019 | from 10.0.17763.0, before 10.0.17763.4252 | 10.0.17763.4252 |
| Microsoft Windows Server 2019 (Server Core installation) | from 10.0.17763.0, before 10.0.17763.4252 | 10.0.17763.4252 |
| Microsoft Windows 10 Version 1909 | from 10.0.0, before 10.0.18363.2274 | 10.0.18363.2274 |
| Microsoft Windows 10 Version 21H1 | from 10.0.0, before 10.0.19043.1706 | 10.0.19043.1706 |
| Microsoft Windows Server 2022 | from 10.0.20348.0, before 10.0.20348.1668 | 10.0.20348.1668 |
| Microsoft Windows 10 Version 20H2 | from 10.0.0, before 10.0.19042.1706 | 10.0.19042.1706 |
| Microsoft Windows Server version 20H2 | from 10.0.0, before 10.0.19042.1706 | 10.0.19042.1706 |
| Microsoft Windows 11 version 21H2 | from 10.0.0, before 10.0.22000.1817 | 10.0.22000.1817 |
| Microsoft Windows 10 Version 21H2 | from 10.0.19043.0, before 10.0.19043.1706 | 10.0.19043.1706 |
| Microsoft Windows 10 Version 1507 | from 10.0.10240.0, before 10.0.10240.19297 | 10.0.10240.19297 |
| Microsoft Windows 10 Version 1607 | from 10.0.14393.0, before 10.0.14393.5850 | 10.0.14393.5850 |
| Microsoft Windows Server 2016 | from 10.0.14393.0, before 10.0.14393.5850 | 10.0.14393.5850 |
| Microsoft Windows Server 2016 (Server Core installation) | from 10.0.14393.0, before 10.0.14393.5850 | 10.0.14393.5850 |
| Microsoft Windows 8.1 | from 6.3.0, before 6.3.9600.20371 | 6.3.9600.20371 |
| Microsoft Windows Server 2012 R2 | from 6.3.9600.0, before 6.3.9600.20919 | 6.3.9600.20919 |
| Microsoft Windows Server 2012 R2 (Server Core installation) | from 6.3.9600.0, before 6.3.9600.20919 | 6.3.9600.20919 |
Exploitation
| In CISA KEV since | 18 Aug 2022 |
|---|---|
| Due date for US federal agencies | 8 Sep 2022 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 2.0 | 9 highAV:N/AC:L/Au:S/C:C/I:C/A:CScored by NVD |
|---|---|
| Weakness | CWE-295 |
References
- CVE-2022-26923 on NVD
- CVE-2022-26923 in the CISA KEV catalog
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2022-26923 (cited by CISA)
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-26923 Patch, Vendor Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-26923 Patch, Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-26923 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.