High severity Vulnerability

Citrix NetScaler Improper Input Validation Vulnerability

Citrix NetScaler ADC and NetScaler Gateway contain an improper input validation vulnerability that could allow an unauthenticated attacker to execute arbitrary commands.

Overview

Citrix NetScaler ADC and NetScaler Gateway contain an improper input validation vulnerability that could allow an unauthenticated attacker to execute arbitrary commands. Citrix NetScaler is under active exploitation. Report it as CVE-2026-88771, patch by 2026-09-30. Imported automatically from CISA Known Exploited Vulnerabilities on Sep 30, 2026.

Indicators of Compromise

Signals that suggest this is present on a system.

  • CVE-2026-88771

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