CVE intelligence

CVE-2026-19489

Vulnerability intelligence

Published Aug 19, 2026Sources checked Oct 27, 2026

8.8HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-19489 and is rated High severity with a CVSS score of 8.8. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Citrix Security Bulletins guidance

Vendor revision: Aug 19, 2026

Vendor remediation details

Cloud Software Group strongly urges affected customers of NetScaler ADC and NetScaler Gateway to install the relevant updated versions as soon as possible.

Vendor-listed releases

NetScaler ADC and NetScaler Gateway 14.1-73.32 and later releases
NetScaler ADC and NetScaler Gateway 13.1-63.21 and later releases of 13.1
NetScaler ADC 14.1-FIPS 14.1-73.32 FIPS and later releases of 14.1-FIPS
NetScaler ADC 13.1-FIPS and 13.1-NDcPP 13.1-37.277 and later releases of 13.1-FIPS and 13.1-NDcPP

CISA KEVNot listedBased on the latest collected catalog

EPSS0.4%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-19489?

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.

Source: NVD