CVE-2020-8193: Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability

Medium severity, CVSS 6.5. Actively exploited: in CISA KEV since 2021-11-03. EPSS: 88.4% chance of exploitation in the next 30 days.

Improper access control in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and Citrix SDWAN WAN-OP versions before 11.1.1a, 11.0.3d and 10.2.7 allows unauthenticated access to certain URL endpoints.

Affected products

• Citrix Application Delivery Controller Firmware: from 10.5, before 10.5-70.18 (fixed in 10.5-70.18); from 11.1, before 11.1-64.14 (fixed in 11.1-64.14); from 12.0, before 12.0-63.21 (fixed in 12.0-63.21); from 12.1, before 12.1-57.18 (fixed in 12.1-57.18); from 13.0, before 13.0-58.30 (fixed in 13.0-58.30)
• Citrix Gateway Firmware: from 13.0, before 13.0-58.30 (fixed in 13.0-58.30)
• Citrix NetScaler Gateway Firmware: from 10.5, before 10.5-70.18 (fixed in 10.5-70.18); from 11.1, before 11.1-64.14 (fixed in 11.1-64.14); from 12.0, before 12.0-63.21 (fixed in 12.0-63.21); from 12.1, before 12.1-57.18 (fixed in 12.1-57.18)
• Citrix SD-WAN WANOP: from 10.2, before 10.2.7 (fixed in 10.2.7); from 11.0, before 11.0.3d (fixed in 11.0.3d); from 11.1, before 11.1.1a (fixed in 11.1.1a)

Published 2020-07-10. Last modified 2026-06-17.