F5 BIG-IP Vulnerability Reclassified as RCE, Under Exploitation
CVE-2025-53521 was initially disclosed in October as a high-severity denial-of-service (DoS) flaw, but new information has revealed the bug is actually much more dangerous.
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CVE-2025-53521 was initially disclosed in October as a high-severity denial-of-service (DoS) flaw, but new information has revealed the bug is actually much more dangerous.
CVE-2025-53521 was initially disclosed in October as a high-severity denial-of-service (DoS) flaw, but new information has revealed the bug is actually much more dangerous.
F5 Revises Severity of Flaw Disclosed Last YearFlaws in major application delivery and security platforms and VPN gateways are being actively exploited or targeted. Under fire: a vulnerability in F5 BIG-IP Access Policy Manager can facilitate remote code execution, and a "memory overread" flaw in NetScaler Application Delivery Controller.
Security researchers are warning F5 BIG-IP admins to immediately install the latest security updates after creating exploits for a recently disclosed critical CVE-2022-1388 remote code execution vulnerability. [...]