CVE-2019-19781
9.8
CRITICAL
CVSS 3.1
EPSS 100.0% · 100th pctCISA KEV · Exploited in the wild
2019-12-27•Updated 2026-08-12•KEV 2021-11-03
CISA Known Exploited Vulnerabilities
Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Added to KEV
2021-11-03
Remediation due
2022-05-03
Ransomware
Known use
Required action
Apply updates per vendor instructions.
CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2019-19781
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.
Severity
CVSS 3.1 · CISA9.8 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSSVC · CISA-ADP
Exploitationactive
Automatableyes
Technical impacttotal
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| - | - | n/a |
References
10 LinksThird-party advisories
Other references
- https://support.citrix.com/article/CTX267027
- https://twitter.com/bad_packets/status/1215431625766424576
- https://badpackets.net/over-25000-citrix-netscaler-endpoints-vulnerable-to-cve-2019-19781/
- https://forms.gle/eDf3DXZAv96oosfj6
- http://packetstormsecurity.com/files/155904/Citrix-Application-Delivery-Controller-Gateway-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/155930/Citrix-Application-Delivery-Controller-Gateway-10.5-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/155905/Citrix-Application-Delivery-Controller-Gateway-Remote-Code-Execution-Traversal.html
- http://packetstormsecurity.com/files/155947/Citrix-ADC-NetScaler-Directory-Traversal-Remote-Code-Execution.html
- http://packetstormsecurity.com/files/155972/Citrix-ADC-Gateway-Path-Traversal.html
Record Details
Published
2019-12-27
Last updated
2026-08-12
Assigner (CNA)
mitre
Credited to
-
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