> Hackers exploited Citrix, Cisco ISE flaws in zero-day attacks
[AUTHOR: Bill Toulas]
[DATE: 12/11/2025 14:00]
[LANGUAGE: EN]
An advanced threat actor exploited the critical vulnerabilities "Citrix Bleed 2" (CVE-2025-5777) in NetScaler ADC and Gateway, and CVE-2025-20337 affecting Cisco Identity Service Engine (ISE) as zero-days to deploy custom malware. [...]