Citrix patches 28 NetScaler flaws, one critical on default installs
CVE-2026-120868, a CVSS 9.3 memory overflow, needs no login or special feature and can crash any unpatched appliance.
Local DoS reboot loop in Citrix NetScaler ADC and Gateway
Improper request handling in Citrix NetScaler ADC and Citrix NetScaler Gateway can put the appliance into a denial-of-service or reboot-loop condition. An attacker with local access can trigger it without authentication or user interaction. The impact is loss of availability; confidentiality and integrity are not affected. Citrix has not listed affected builds.
What to do: Apply Citrix's update for CVE-2026-111335. Fixed versions are not stated.
| Product | Affected |
|---|---|
| Citrix NetScaler ADC | — |
| Citrix NetScaler Gateway | — |
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
Improper request handling can lead to a denial-of-service / reboot-loop condition in Citrix NetScaler ADC and Citrix NetScaler Gateway.
CVE-2026-120868, a CVSS 9.3 memory overflow, needs no login or special feature and can crash any unpatched appliance.
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