CVE-2026-19490

Vulnerability in NetScaler ADC and NetScaler Gateway. This issue affects ADC: from 14.1 through 73.32 and from 13.1 through 63.21; Gateway: from 14.1 through 73.32 and from 13.1 through 63.21.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696939	Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-19490	US Government Resource

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:citrix:netscaler_application_delivery_controller:::::fips:::*
	cpe:2.3:a:citrix:netscaler_application_delivery_controller:::::ndcpp:::*
	cpe:2.3:a:citrix:netscaler_application_delivery_controller:::::-:::*
	cpe:2.3:a:citrix:netscaler_application_delivery_controller:::::-:::*
	cpe:2.3:a:citrix:netscaler_application_delivery_controller:::::fips:::*
	cpe:2.3:a:citrix:netscaler_gateway::::::::
	cpe:2.3:a:citrix:netscaler_gateway::::::::

History

No history.

Information

Published : 2026-08-19 13:17

Updated : 2026-09-10 12:48

NVD link : CVE-2026-19490

Mitre link : CVE-2026-19490

CVE.ORG link : CVE-2026-19490

JSON object : View

Products Affected

citrix

netscaler_gateway
netscaler_application_delivery_controller

CWE

CWE-288

Authentication Bypass Using an Alternate Path or Channel

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Gateway: from 14.1 through 73.32 and from 13.1 through 63.21."}], "lastModified": "2026-09-10T12:48:10.453", "cisaActionDue": "2026-09-12", "cisaExploitAdd": "2026-09-09", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*", "vulnerable": true, "matchCriteriaId": "2F90F173-E24C-4189-87FF-2157DBBECE4A", "versionEndExcluding": "13.1-37.277", "versionStartIncluding": "13.1"}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*", "vulnerable": true, "matchCriteriaId": "2CD7AEA1-F0D9-47E9-A4BF-6E72E2083934", "versionEndExcluding": "13.1-37.277", "versionStartIncluding": "13.1"}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "07826E3F-A0BA-42DB-97DD-677E2F1E99B8", "versionEndExcluding": "13.1-63.21", "versionStartIncluding": "13.1"}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*", "vulnerable": true, "matchCriteriaId": "12664220-1266-43A3-A5B9-011E06C56A3E", "versionEndExcluding": "14.1-73.32", "versionStartIncluding": "14.1"}, {"criteria": "cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*", "vulnerable": true, "matchCriteriaId": "98857F06-6895-4454-A52D-E200D2109B19", "versionEndIncluding": "14.1-73.32", "versionStartIncluding": "14.1-66.68"}, {"criteria": "cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0ACEC99D-8145-45D4-BFCC-ADC11999D2CF", "versionEndExcluding": "13.1-63.21", "versionStartIncluding": "13.1"}, {"criteria": "cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "45606A9C-06AF-4A4B-80B4-CB1A29230C85", "versionEndExcluding": "14.1-73.32", "versionStartIncluding": "14.1"}], "operator": "OR"}]}], "sourceIdentifier": "50a63c94-1ea7-4568-8c11-eb79e7c5a2b5", "cisaRequiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA\u2019s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA\u2019s \u201cForensics Triage Requirements\u201d (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.", "cisaVulnerabilityName": "Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerability"}