Citrix 0-Day Flaw Under Active Exploitation Since May

Security researcher Kevin Beaumont has revealed alarming details about CVE-2025-6543, a critical Citrix NetScaler vulnerability that was actively exploited as a zero-day attack for months before the company issued patches. What Citrix initially downplayed as a simple “denial of service” vulnerability has proven to be a sophisticated remote code execution flaw that compromised government and […]

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