AEGLIX vulnerability intelligence
CVE-2019-19781
CRITICAL · CVSS 9.8 · Analyzed
Published: 2019-12-27 · Updated: 2026-08-12 · Source: NVD
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Vulnerability overview
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 and scoring
- CVSS score
- 9.8 · CRITICAL
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-22
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Citrix · Application Delivery Controller (ADC), Gateway, and SD-WAN WANOP Appliance
- Added to catalog
- 2021-11-03
- Required action
- Apply updates per vendor instructions.
- CISA remediation due date
- 2022-05-03
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:o:citrix:application_delivery_controller_firmware:10.5:*:*:*:*:*:*:*
cpe:2.3:o:citrix:application_delivery_controller_firmware:11.1:*:*:*:*:*:*:*
cpe:2.3:o:citrix:application_delivery_controller_firmware:12.0:*:*:*:*:*:*:*
cpe:2.3:o:citrix:application_delivery_controller_firmware:12.1:*:*:*:*:*:*:*
cpe:2.3:o:citrix:application_delivery_controller_firmware:13.0:*:*:*:*:*:*:*
cpe:2.3:o:citrix:netscaler_gateway_firmware:10.5:*:*:*:*:*:*:*
cpe:2.3:o:citrix:netscaler_gateway_firmware:11.1:*:*:*:*:*:*:*
cpe:2.3:o:citrix:netscaler_gateway_firmware:12.0:*:*:*:*:*:*:*
cpe:2.3:o:citrix:netscaler_gateway_firmware:12.1:*:*:*:*:*:*:*
cpe:2.3:o:citrix:gateway_firmware:13.0:*:*:*:*:*:*:*
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- http://packetstormsecurity.com/files/155904/Citrix-Application-Delivery-Controller-Gateway-Remote-Code-Execution.html
Third Party Advisory · VDB Entry
- http://packetstormsecurity.com/files/155905/Citrix-Application-Delivery-Controller-Gateway-Remote-Code-Execution-Traversal.html
Third Party Advisory · VDB Entry
- http://packetstormsecurity.com/files/155930/Citrix-Application-Delivery-Controller-Gateway-10.5-Remote-Code-Execution.html
Third Party Advisory · VDB Entry
- http://packetstormsecurity.com/files/155947/Citrix-ADC-NetScaler-Directory-Traversal-Remote-Code-Execution.html
Third Party Advisory · VDB Entry
- http://packetstormsecurity.com/files/155972/Citrix-ADC-Gateway-Path-Traversal.html
Third Party Advisory · VDB Entry
- https://badpackets.net/over-25000-citrix-netscaler-endpoints-vulnerable-to-cve-2019-19781/
Broken Link · Third Party Advisory
- https://forms.gle/eDf3DXZAv96oosfj6
Third Party Advisory
- https://support.citrix.com/article/CTX267027
Vendor Advisory
- https://twitter.com/bad_packets/status/1215431625766424576
Broken Link · Third Party Advisory
- https://www.kb.cert.org/vuls/id/619785
Third Party Advisory · US Government Resource
- http://packetstormsecurity.com/files/155904/Citrix-Application-Delivery-Controller-Gateway-Remote-Code-Execution.html
Third Party Advisory · VDB Entry
- http://packetstormsecurity.com/files/155905/Citrix-Application-Delivery-Controller-Gateway-Remote-Code-Execution-Traversal.html
Third Party Advisory · VDB Entry
- http://packetstormsecurity.com/files/155930/Citrix-Application-Delivery-Controller-Gateway-10.5-Remote-Code-Execution.html
Third Party Advisory · VDB Entry
- http://packetstormsecurity.com/files/155947/Citrix-ADC-NetScaler-Directory-Traversal-Remote-Code-Execution.html
Third Party Advisory · VDB Entry
- http://packetstormsecurity.com/files/155972/Citrix-ADC-Gateway-Path-Traversal.html
Third Party Advisory · VDB Entry
- https://badpackets.net/over-25000-citrix-netscaler-endpoints-vulnerable-to-cve-2019-19781/
Broken Link · Third Party Advisory
- https://forms.gle/eDf3DXZAv96oosfj6
Third Party Advisory
- https://support.citrix.com/article/CTX267027
Vendor Advisory
- https://twitter.com/bad_packets/status/1215431625766424576
Broken Link · Third Party Advisory
- https://www.kb.cert.org/vuls/id/619785
Third Party Advisory · US Government Resource
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-19781
US Government Resource