CVE-2026-19490
Received Received - Intake

Buffer Overflow in Citrix NetScaler ADC and Gateway

Publication date: 2026-08-19

Last updated on: 2026-08-19

Assigner: NetScaler

Description
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 Scores

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Meta Information

Published
2026-08-19
Last Modified
2026-08-19
Generated
2026-08-19
AI Q&A
2026-08-19
EPSS Evaluated
N/A
NVD
CVE-2026-19490
EUVD
EUVD-2026-62395

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
citrix netscaler_adc From 14.1 (inc) to 73.32 (inc)
citrix netscaler_adc From 13.1 (inc) to 63.21 (inc)
citrix netscaler_gateway From 14.1 (inc) to 73.32 (inc)
citrix netscaler_gateway From 13.1 (inc) to 63.21 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

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Executive Summary

This is a vulnerability in Citrix NetScaler ADC and NetScaler Gateway affecting versions 14.1 through 73.32 and 13.1 through 63.21. The issue has a high CVSS score of 9.3, indicating severe impact with potential for unauthorized access or data breaches.

Impact Analysis

The vulnerability may allow remote attackers to gain unauthorized access, execute arbitrary code, or disrupt services. It could lead to data theft, system compromise, or denial of service for affected NetScaler ADC and Gateway devices.

Mitigation Strategies

Update NetScaler ADC and NetScaler Gateway to versions beyond the affected ranges (14.1-73.32 and 13.1-63.21).

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