# CVE-2026-41091

> Improper link resolution before file access ('link following') in Microsoft Defender allows an authorized attacker to elevate privileges locally.

- **CVSS:** 7.8 (HIGH)
- **EPSS:** 7.0%
- **CISA KEV:** yes (known ransomware use)
- **CWE:** CWE-59

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-41091
Full threat coverage + IOCs via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp