CISA slaps its tightest three-day patching deadline on perfect-10 Oracle flaw

The US Cybersecurity and Infrastructure Security Agency (CISA) just dished out another three-day deadline for patching an actively exploited vulnerability, the most urgent in its wheelhouse. The culprit: a max-severity Oracle bug affecting Windows VMs. Tracked as CVE-2026-21962 (10.0), the improper access control (CWE-284) flaw affects Oracle’s HTTP Server and WebLogic Server Proxy Plug-in. Successful attacks targeting CVE-2026-21962 can allow miscreants to create, delete, or modify access