The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a newly disclosed vulnerability affecting F5 BIG-IP systems to its Known Exploited Vulnerabilities (KEV) catalog, warning that the flaw is being actively leveraged in real-world attacks. The vulnerability, tracked as CVE-2025-53521, was officially listed on March 27, 2026, with a remediation deadline of March 30, […] The post CISA Warns of F5 BIG-IP Vulnerability Actively Exploited in Attacks appeared first on Cyber Security News.