1. Actively Exploited F5 BIG-IP DoS Vulnerability (CVE-2025-53521)
WhatA denial-of-service flaw in F5 BIG-IP (CVSS 7.5) when an APM Access Policy is configured. Listed in CISA KEV as actively exploited.
Source[Greenbone](www.greenbone.net)
Applies toAny org using F5 BIG-IP with APM policies.
Why it mattersAttackers are exploiting it now – patch or mitigate immediately.
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