NCSC Urges Immediate Patching of F5 BIG-IP Bug
ID: 2c0e483c-39fa-554b-9087-5d12511c3e1f
STIX ID: report--2c0e483c-39fa-554b-9087-5d12511c3e1f
Feed Name: Infosecurity Magazine (News)
Threat Score
UK and US agencies warn of active exploitation of a critical F5 BIG-IP APM vulnerability (CVE-2025-53521) reclassified as an RCE (CVSS 9.8); CISA added it to its Known Exploited Vulnerabilities catalog and urged immediate patching while NCSC and F5 publish mitigation steps, forensic guidance, and IOCs.
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