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Vulnerabilities / CVE-2026-19490

CVE-2026-19490

Published 2026-08-19 · published (not yet in NVD)

CVE-2026-19490

NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490

Exploited in the wild: CISA added it to the Known Exploited Vulnerabilities catalog on 2026-09-09, with a fix-by date of 2026-09-12. Patch it first.

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.

9.3 CRITICAL
CVSS 4.0 · CNA
33%
chance of exploitation in the next 30 days (EPSS; higher than 98% of CVEs)

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

Affected products

  • NetScaler ADC: 14.1 to ≤ 73.32; 13.1 to ≤ 63.21
  • NetScaler Gateway: 14.1 to ≤ 73.32; 13.1 to ≤ 63.21
1 references (advisories, patches, write-ups)

Sources: CVE.org, FIRST EPSS. Missing ones did not answer or have no record yet.

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