Citrix Patches Third Actively Exploited NetScaler Zero Day
Citrix has issued a patch for a third actively exploited zero-day vulnerability in its NetScaler product, releasing the fix within days of addressing two previous flaws that were also under active attack.
Why this matters: Three zero-days in rapid succession in the same product is a bad sign. NetScaler sits at the edge of corporate and healthcare networks, handling logins and application access for large organizations. Attackers are not waiting for slow patch cycles. If your organization runs NetScaler and has not applied these fixes, someone may already be inside. The repeated exploitation also points to a deeper problem: the product's attack surface is being actively probed and the defenders are playing catch-up.
Who should care: Healthcare professionals · Privacy officers · Compliance
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