CriticalCVSS9.82026-06-07
Equifax breach (2017) — how an unpatched Apache Struts flaw leaked 147M people
The cause was a known, already-patched CVE (CVSS 9.8) left unapplied on a public system. An expired monitoring certificate hid the exfiltration for 76 days. In your environment: asset inventory, a patch SLA, machine monitoring, and healthy detection.