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    NetScaler appliances still on August-patch builds vulnerable to new 0-days

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    GlassDiceBearhttps://www.dicebear.comhttps://creativecommons.org/publicdomain/zero/1.0/„Glass” (https://www.dicebear.com) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)
    Arnold Chan@slaz
    •updated Sep 27, 2026•1•0•8

    Identifies NetScaler ADC or Gateway software versions in the inventory that are known to be vulnerable to CVE-2026-88771 and CVE-2026-88772, despite having received the patch for CVE-2026-19490.

    Microsoft Sentinel (KQL)

    Tags

    T1190 - Exploit Public-Facing ApplicationVulnerability Scan DetectedApplication Configuration ChangeNetwork GenericGeneric Application LogCVE-2026-19490CVE-2026-88771CVE-2026-88772kql

    Found in

    • Critical NetScaler RCE Exploitation CVE-2026-88771 SummaryLast updated 19 days ago
    • Critical Unpatched Citrix NetScaler RCE Zero-Days ExploitedLast updated 24 days ago
    • ICMacOS: Evolution of MaaS Infostealer to RATLast updated Oct 14, 2026
    • Citrix NetScaler Exploitation Analysis and Hunting GuideLast updated Oct 12, 2026
    • Citrix NetScaler Flaws Exploited as Zero-DayLast updated Sep 27, 2026
    • CVE-2026-33824 Windows IKE Extension Pre-Auth RCELast updated Aug 21, 2026

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