CVE-2026-19490
NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490
Citrix·NetScaler
- Added
- Sep 9, 2026
- Fix due
- Sep 12, 2026
- Ransomware
- Not known
- Published
- Aug 19, 2026
- Updated
- Oct 7, 2026
- First covered
- Aug 20, 2026
- Latest story
- 3 months ago
Summary
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.
CWE-288Authentication Bypass Using an Alternate Path or Channel
Attack profile
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:LCISA required action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (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.
Affected products
- NetScaler ADC14.1 to 73.3213.1 to 63.21
- NetScaler Gateway14.1 to 73.3213.1 to 63.21