CISA working on a Sunday: Citrix NetScaler zero-days CVE-2026-88771 and CVE-2026-887712 were added to the Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. https://www.cisa.gov/news-event/alerts/2026/09/27/cisa-adds-two-known-exploited-vulnerabilities-catalog #KEV #Citrix #NetScaler #zeroday #CVE