Microsoft Active Directory Domain Services Privilege Escalation Vulnerability

Critical Threat Advisory: This vulnerability is documented in active Ransomware campaigns. Immediate remediation required.

Technical Severity

HIGH

7.5 / 10

Minimal Risk Critical

Vector Specification

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Exploitation Likelihood

94.01 %

Predictive Probability

Percentile Rank

99.9 th

Documented as more likely to be exploited than 99.9% of known CVEs.

Detection Date

Apr 11, 2022

Remediation Due

May 02, 2022

CISA Catalog Active

Threat Analysis

Microsoft Active Directory Domain Services contains an unspecified vulnerability that allows for privilege escalation.

Apply updates per vendor instructions.

Vendor Identity

Microsoft

Affected Product

Active Directory

Ransomware Status

Campaign Use Known

Weakness Classification

CWE-269

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2021-42287