NCSC Warns of Citrix Netscaler Vulnerability CVE-2025-6543 Exploited to Breach Orgs

The Dutch National Cyber Security Centre (NCSC-NL) has issued an urgent warning about sophisticated cyberattacks targeting critical infrastructure through a zero-day vulnerability in Citrix NetScaler devices. The vulnerability, designated CVE-2025-6543, has been actively exploited since early May 2025, successfully compromising several critical organizations across the Netherlands. Citrix NetScaler ADC and Gateway systems serve as crucial […]

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