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Back to active CVEs
Critical · CVSS 9.3Known ExploitedCVE-2026-19490

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

Answer in brief

CVE-2026-19490 records a Critical severity (CVSS 9.3) vulnerability in NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-19490. The current sources mark it as known exploited. The current feed maps NetScaler/ADC (generic), NetScaler/Gateway (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 19, 2026Updated Sep 12, 2026Source checked Oct 3, 2026First seen by HOL Aug 19, 2026Material review Sep 12, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.3
Exploitation
Known exploited
Affected software
6 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 9.3. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps NetScaler/ADC (generic), NetScaler/Gateway (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:-:*:*:*Not reportedNot reported
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:fips:*:*:*Not reportedNot reported
cpe:2.3:a:citrix:netscaler_application_delivery_controller:*:*:*:*:ndcpp:*:*:*Not reportedNot reported
cpe:2.3:a:citrix:netscaler_gateway:*:*:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
NetScaler/ADCgeneric14.1 || 13.1Not reported
NetScaler/Gatewaygeneric14.1 || 13.1Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for NetScaler/ADC, NetScaler/Gateway.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Aug 19, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 12, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 19, 2026

  4. Added to CISA KEV

    Sep 9, 2026

    Evidence: source:kev:kev:kev:record

Sources and claim methodology

  • Source referencesupport.citrix.com
  • CISA Known Exploited Vulnerabilities catalogcisa.gov
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • WP Ultimate Review <= 2.4.3 - Unauthenticated Arbitrary Shortcode Execution via 'xs_reviw_summery' Parameter (Split-Shortcode / Late-Registered Shortcode)Same generic ecosystem
  • WordPress Kirki plugin <= 6.3.1 - Arbitrary Code Execution vulnerabilitySame generic ecosystem
  • WordPress Unlimited Elements For Elementor (Free Widgets, Addons, Templates) plugin <= 2.0.20 - Cross Site Scripting (XSS) vulnerabilitySame generic ecosystem
  • WPMobile.App <= 11.84 - Unauthenticated Stored Cross-Site Scripting via '/android_json/search/<value>/0' Path SegmentSame generic ecosystem
  • WP Ultimate Review <= 2.4.3 - Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'xs_reviw_summery' ParameterSame generic ecosystem
  • WPC Estimated Delivery Date for WooCommerce <= 4.0.1 - Reflected Cross-Site Scripting via 'rule_data' ParameterSame generic ecosystem

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-288
Source
CVE List V5
Source checked
Oct 3, 2026
References
2 linked sources
Open source record