CVE-2021-42278

high-risk
Published 2021-11-10

Active Directory Domain Services Elevation of Privilege Vulnerability

Do I need to act?

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94.1% chance of exploitation in next 30 days
EPSS score — higher than 6% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / HIGH complexity

Affected Products (9)

Affected Vendors

Microsoft

References (3)

Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4227...
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4227...
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-...
64
/ 100
high-risk
Severity 22/34 · High
Exploitability 27/34 · High
Exposure 15/34 · Moderate