- Critical 9.3
- Known exploited (CISA KEV)
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.
Scores
The facts
- Published
- 19 August 2026
- Last changed
- 7 October 2026
- NVD status
- Analyzed
- Severity
- Critical, CVSS 9.3 out of 10 (version 4.0)
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R… - Weakness
- Affects
- citrix netscaler application delivery controller
- citrix netscaler gateway
- Known exploited
- Yes. CISA added it to the Known Exploited Vulnerabilities catalogue on 9 September 2026.
- EPSS
- 23.2% chance of exploitation activity in the next 30 days (percentile 98).
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