Vulnerability Intelligence Report
NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490
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.
CISA KEV
SSVC: Active Exploitation
Automatable
CVSS Base Score
9.3
CRITICAL
EPSS Probability:3.37%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-288 ↗CWE-288 Authentication Bypass Using an Alternate Path or Channel
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| NetScaler | ADC | 14.1 <= 73.32 (affected), 13.1 <= 63.21 (affected) |
| NetScaler | Gateway | 14.1 <= 73.32 (affected), 13.1 <= 63.21 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | NetScaler · Vendor · USA |
| Reserved | 2026-08-10T17:39:56 |
| Published | 2026-08-19T12:54:39 |
| Last Updated | 2026-09-10T03:55:17 |
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