CVE-2019-19781

CRITICAL9.8

CISA KEV

Published 2019-12-27 · Updated 2026-08-12 · Source cve@mitre.org

Summary

CVE-2019-19781 is a critical-severity (CVSS 9.8) vulnerability in Citrix Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance. CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 3, 2022. CISA also lists it as known to be used in ransomware campaigns, so it should be prioritised accordingly. Citrix has 27 vulnerabilities in the KEV catalog, 7 of them linked to ransomware.

All 27 known-exploited Citrix vulnerabilities →

Description

An issue was discovered in Citrix Application Delivery Controller (ADC) and Gateway 10.5, 11.1, 12.0, 12.1, and 13.0. They allow Directory Traversal.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-22CWE-22

CISA Known-Exploited Vulnerability

Product: Citrix — Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance

Name: Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution Vulnerability

Date added: 2021-11-03 · Due: 2022-05-03

USED IN RANSOMWARE

Required action: Apply updates per vendor instructions.

References

View on NVD

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