ID: c883a9f6-8db2-5993-903d-5057f259d9fc
STIX ID: report--c883a9f6-8db2-5993-903d-5057f259d9fc
Feed Name: Australian Cyber Security Centre (Alerts)
Date Published: 2026-09-08
Date Updated: 2026-10-08
Author: Australian Cyber Security Centre (ACSC)
ASD's ACSC warns Australian organisations that two critical vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway (CVE-2026-19489 — memory overflow, and CVE-2026-19490 — authentication bypass) exist; patches were released on 19 August 2026 and organisations are urged to apply them and follow vendor/ASD mitigation guidance. The alert notes these devices are high-value attack vectors but states there is no information indicating targeted sector-specific exploitation; contact details for assistance are provided.
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