# CVE-2025-53521

> When a BIG-IP APM access policy is configured on a virtual server, specific malicious traffic can lead to Remote Code Execution (RCE). Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

- **CVSS:** 9.8 (CRITICAL)
- **EPSS:** 41.4%
- **CISA KEV:** yes
- **CWE:** CWE-121, CWE-770

Canonical: https://intel.threadlinqs.com/cve/CVE-2025-53521
Full threat coverage + IOCs via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp