CISA KEV: CVE-2026-88779 — Citrix NetScaler actively exploited

Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability. Citrix NetScaler ADC (formerly Citrix ADC) and Citrix NetScaler Gateway (formerly Citrix Gateway) contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for a denial of service. Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Ris