CVE-2026-19490

NetScaler ADC and NetScaler Gateway Security Bulletin for 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.

Affected

NetScaler · ADC · Gateway

CVSS v4.0 CNA

9.3 CRITICALCVSS: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:X/V:X/RE:X/U:X

EPSS

3.37% chance of exploitation in the next 30 days, 88th percentile

Published

2026-08-19

Updated

2026-08-20

Proof-of-concept exploits (1)

• TarPeg007/CVE-2026-19490

References

• CVE Record
• NVD entry