Read More 3 minute read Security Critical F5 BIG-IP Flaw Upgraded to 9.8 RCE, Exploited in the Wild F5 BIG-IP APM flaw CVE-2025-53521 escalates to critical 9.8 RCE, actively exploited. Patch now, check IoCs, and secure vulnerable systems immediately. byDeeba AhmedMarch 31, 2026