cve | cybersecurity | Threat Intelligence | zero day Patched Last Week, Crashing This Weekend: NetScaler Zero-Day CVE-2026-88779 Is Under Attack, and CISA Wants It Fixed by Wednesday By CVE-2026-88779 is an exploited Citrix NetScaler SAML flaw affecting appliances patched only days ago. Review fixed builds, CISA’s October 7 deadline, detection clues and prioritized CISO actions.