CVE-2019-6485: Citrix NetScaler Application Delivery Controller Firmware

Medium severity, CVSS 5.9. EPSS: 2.3% chance of exploitation in the next 30 days.

Citrix NetScaler Gateway 12.1 before build 50.31, 12.0 before build 60.9, 11.1 before build 60.14, 11.0 before build 72.17, and 10.5 before build 69.5 and Application Delivery Controller (ADC) 12.1 before build 50.31, 12.0 before build 60.9, 11.1 before build 60.14, 11.0 before build 72.17, and 10.5 before build 69.5 allow remote attackers to obtain sensitive plaintext information because of a TLS Padding Oracle Vulnerability when CBC-based cipher suites are enabled.

Affected products

• Citrix NetScaler Application Delivery Controller Firmware: version 10.5 only; version 11.0 only; version 11.1 only; version 12.0 only; version 12.1 only
• Citrix NetScaler Gateway Firmware: version 10.5 only; version 11.0 only; version 11.1 only; version 12.0 only; version 12.1 only

Published 2019-02-22. Last modified 2026-06-17.