Risk Letters

Exploited vulnerability

CVE-2021-42278

TLP:CLEAR

Microsoft Active Directory Domain Services Privilege Escalation Vulnerability

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

Facts

  • Vendor: Microsoft
  • Product: Active Directory
  • CVSS: 7.5
  • EPSS (probability of exploitation within 30 days): 73.3 %
  • On CISA's Known Exploited Vulnerabilities list since: 11 April 2022
  • First known exploitation: 11 April 2022
  • Used in ransomware campaigns (per CISA): Yes
  • CISA's deadline for US federal agencies: 2 May 2022
  • Weakness: CWE-20
  • First seen by Risk Letters: 11 April 2022

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD