CVE-2023-6548: Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability

High severity, CVSS 8.8. Actively exploited: in CISA KEV since 2024-01-17. EPSS: 3.2% chance of exploitation in the next 30 days.

Improper Control of Generation of Code ('Code Injection') in NetScaler ADC and NetScaler Gateway allows an attacker with access to NSIP, CLIP or SNIP with management interface to perform Authenticated (low privileged) remote code execution on Management Interface.

Affected products

• Citrix NetScaler Application Delivery Controller: from 12.1, before 12.1-55.302 (fixed in 12.1-55.302); from 13.0, before 13.0-92.21 (fixed in 13.0-92.21); from 13.1, before 13.1-37.176 (fixed in 13.1-37.176); from 13.1, before 13.1-51.15 (fixed in 13.1-51.15); from 14.1, before 14.1-12.35 (fixed in 14.1-12.35)
• Citrix NetScaler Gateway: from 13.0, before 13.0-92.21 (fixed in 13.0-92.21); from 13.1, before 13.1-51.15 (fixed in 13.1-51.15); from 14.1, before 14.1-12.35 (fixed in 14.1-12.35)

Published 2024-01-17. Last modified 2026-06-17.