[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fYHwwtQR9cIDzl7fn84wC-MarbZrdbIrpxzubnmuDUjY":3},{"article":4,"iocs":33,"watch_terms":38},{"id":5,"title":6,"slug":7,"summary":8,"ai_summary":9,"brief":10,"full_text":11,"url":12,"image_url":13,"published_at":14,"ingested_at":15,"relevance_score":16,"entities":17,"category_id":18,"category":19,"article_tags":22},"f807f434-6ae1-4fde-8c5f-1dc8d611cd3b","F5 BIG-IP Vulnerability Reclassified as RCE, Under Exploitation","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.","F5 BIG-IP vulnerability CVE-2025-53521, originally disclosed in October as a high-severity denial-of-service flaw, has been reclassified as a critical remote code execution (RCE) vulnerability. The bug is now known to be under active exploitation in the wild, significantly raising its threat level and urgency for patching.","F5 BIG-IP CVE-2025-53521 reclassified from DoS to critical RCE under active exploitation.",null,"https:\u002F\u002Fwww.darkreading.com\u002Fapplication-security\u002Ff5-big-ip-vulnerability-reclassified-rce-exploitation","https:\u002F\u002Feu-images.contentstack.com\u002Fv3\u002Fassets\u002Fblt6d90778a997de1cd\u002Fblt785465f8bc714950\u002F69caef686b45b775670507cc\u002Ff5_SOPAImagesLimited_Alamy.jpg?width=1280&auto=webp&quality=80&disable=upscale","2026-03-30T18:24:02+00:00","2026-03-31T18:00:25.825244+00:00",9,[],"574f766a-fb3f-487c-8d2c-0720ae75471b",{"id":18,"icon":11,"name":20,"slug":21},"Zero-day","zero-day",[23,28],{"category":24},{"id":25,"icon":11,"name":26,"slug":27},"80544778-fabb-4dcd-aa35-17492e5dcf4f","Vulnerabilities","vulnerabilities",{"category":29},{"id":30,"icon":11,"name":31,"slug":32},"e7b231c8-5f79-4465-8d38-1ef13aea5a14","Threat Intelligence","threat-intelligence",[34],{"type":35,"value":36,"context":37},"cve","CVE-2025-53521","F5 BIG-IP RCE vulnerability reclassified from DoS, under active exploitation",[]]