# CVE-2021-42278

> Active Directory Domain Services Elevation of Privilege Vulnerability

- **CVSS:** 7.5 (HIGH)
- **EPSS:** 94.1%
- **CISA KEV:** yes (known ransomware use)
- **CWE:** NVD-CWE-noinfo

Canonical: https://intel.threadlinqs.com/cve/CVE-2021-42278
Full threat coverage + IOCs via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp