CVE-2021-42291
Active Directory Domain Services Elevation of Privilege Vulnerability
HIGH
7.5
CVSS Score
Published: November 10, 2021 at 12:47 AM UTC
Updated: August 19, 2026 at 05:18 PM UTC
8 products affected across 1 vendorWindows Server 2016Windows Server 2019Windows Server 2012
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Severity
HIGH7.5
Exploit prediction
EPSS 4%
Description
Active Directory Domain Services Elevation of Privilege Vulnerability
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
2012 r220h2
10.0.0 ≤ v < 10.0.19041.134810.0.0
Affected range stops below 10.0.19041.1348, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.0.6003.21282, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.7601.25769, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.2.9200.23517, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.3.9600.20174, so it looks safe — our inference, not a vendor statement
Affected range stops below 10.0.14393.4770, so it looks safe — our inference, not a vendor statement
10.0.17763.0 ≤ v < 10.0.17763.230010.0.17763.0
Affected range stops below 10.0.17763.2300, so it looks safe — our inference, not a vendor statement
10.0.20348.0 ≤ v < 10.0.20348.35010.0.20348.0
Affected range stops below 10.0.20348.350, so it looks safe — our inference, not a vendor statement
10.0.0 ≤ v < 10.0.19041.134810.0.0
Affected range stops below 10.0.19041.1348, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (2)
PatchVendor Advisory
Source: [email protected]
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42291Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42291CVSS
7.5HIGHmicrosoft
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-269
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