NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490

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Overview

Original source data

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.

Affected products and scope

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Technical details

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Exploitability

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Technical impact

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Business impact

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Remediation

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Detection

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Sources (6)

GCVE / Vulnerability-Lookup

NetScaler (CNA)

National Vulnerability Database (NVD)

CISA Known Exploited Vulnerabilities

Other references

Critical

CVSS score: 9.3
Equivalent IDs: GHSA-7c6h-rhhv-wm8r
Provider: NetScaler
Primary affected product: ADC
Affected versions: 14.1 – ≤ 73.32, 13.1 – ≤ 63.21
Published: 08/19/2026
Exploitation status: KEV
Estimated exploitation probability (EPSS): 3.37%
Remote initial access: Yes
Classification: —
Fix: Fix available

CVSS2

(Not available)

Attack complexity: —
Attack vector: —
Confidentiality impact: —
Integrity impact: —
Privileges required: —
User interaction required: —

CVSS3

(Not available)

Attack complexity: —
Attack vector: —
Confidentiality impact: —
Integrity impact: —
Privileges required: —
User interaction required: —

CVSS4

(CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L)

Attack complexity: Low
Attack vector: Network
Confidentiality impact: High
Integrity impact: High
Privileges required: None
User interaction required: None

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