# CVE-2026-21671

> A vulnerability allowing an authenticated user with the Backup Administrator role to perform remote code execution (RCE) in high availability (HA) deployments of Veeam Backup & Replication.

- **CVSS:** 9.1 (CRITICAL)
- **EPSS:** 0.3%
- **CWE:** CWE-94

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-21671
Full threat coverage + IOCs via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp