CVE-2026-19490

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.

Scoring

• CVSS: 9.8 (CRITICAL, 3.1)
• EPSS exploitation probability: Not yet available
• EPSS percentile: Not yet available

CISA KEV status

• Added to KEV: 2026-09-09
• Remediation due date: 2026-09-12
• Known ransomware campaign use: Unknown

Weakness types (CWE)

• CWE-288

References

• https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696939
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-19490

More from Citrix

• CVE-2026-88779 — NetScaler
• CVE-2026-88771 — NetScaler
• CVE-2026-88772 — NetScaler
• CVE-2026-8452 — NetScaler ADC and NetScaler Gateway
• CVE-2026-3055 — NetScaler