Wire · regulatory
Critical NetScaler Flaw Can Bypass Authentication on Certain Gateway and AAA Servers
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Cybersecurity
◆ Source
◆ Verified
Fusion42 · 20 August 2026 · Fusion42 review
Citrix released security updates to fix critical vulnerabilities in NetScaler ADC and Gateway, including a high-severity authentication bypass affecting certain deployments with specific configurations.
This Wire brief sits within Fusion42's coverage of Cybersecurity.
◆ ◆ The Wire takeaway
You must update NetScaler ADC and Gateway immediately if you manage the appliance yourself to avoid exposing your network to an authentication bypass. This flaw opens a direct route for attackers to skip user verification under certain configurations.
◆ Coverage
1 source · 20 Aug 2026
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◆ Topics
Cybersecuritynetscalercitrixvulnerabilityauthentication-bypasssecurity-patch