November 3, 2021 · Applied Cybernetics Group
CVE-2019-19781 — Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance
known ransomware use
Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution Vulnerability
- Added to KEV
2021-11-03- Federal due date
2022-05-03- Vendor
- Citrix
- Product
- Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance
- EPSS
- 100.0th percentile (score 0.944, as of
2026-06-08) - NVD CVSS v3.1
- —
- Ransomware use
- Known
- Upstream
- https://nvd.nist.gov/vuln/detail/CVE-2019-19781
CISA short description
Citrix ADC, Citrix Gateway, and multiple Citrix SD-WAN WANOP appliance models contain an unspecified vulnerability that could allow an unauthenticated attacker to perform code execution.
Required action
Apply updates per vendor instructions.