# CVE-2026-21513

> Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network.

- **CVSS:** 8.8 (HIGH)
- **EPSS:** 28.0%
- **CISA KEV:** yes
- **CWE:** CWE-693

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-21513
Full threat coverage + IOCs via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp