Hackers exploited Citrix, Cisco ISE flaws in zero-day attacks www.bleepingcomputer.com/news/secu…
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.
Amazon’s threat intelligence team, analyzing “MadPot” honeypot data, found that hackers leveraged the two security issues before the security issues were disclosed publicly and patches became available.
Citrix Bleed 2 is a NetScaler ADC and Gateway out-of-bounds memory read problem that the vendor published fixes for in late June.