Citrix NetScaler ADC / Gateway security vulnerabilities
Remote access. Public CVE monitoring for Citrix NetScaler ADC / Gateway. Vendor security advisories are linked on this page.
Built for Remote-access administrators.
69 public records · 0 security-fix timeline events. 0 published in the last 7 days. 25 store a version range.
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Current vulnerabilities
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Patch intelligence
Use version checkers and advisory links to confirm upgrades before you change production.
- Critical 3
- High 3
- Medium 6
- Low 0
2026-08-0412 issues2026-11-01
Known exploited
View all known exploited- Critical9.3Citrix NetScaler ADC and Gateway Out-of-Bounds Read VulnerabilityPatch nowKEVEPSS 99.97%Jun 17, 2025
- Critical9.3Citrix NetScaler Out-of-Bounds Read VulnerabilityPatch nowKEVEPSS 91.49%Mar 23, 2026
- Critical9.5Citrix NetScaler Improper Input Validation VulnerabilityPatch nowKEVEPSS 82.16%Sep 27, 2026
- Critical9.5Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer VulnerabilityPatch nowKEVEPSS 78.16%Sep 27, 2026
- Critical9.3Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel VulnerabilityPatch nowKEVEPSS 32.65%Aug 19, 2026
- Critical9.4Citrix NetScaler ADC and NetScaler Gateway Improper AuthenticationPatch nowKEVEPSS 21.17%Jul 10, 2024
- Critical9.2Citrix NetScaler Memory Overflow VulnerabilityPatch nowKEVEPSS 20.67%Aug 26, 2025
- High8.7Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer VulnerabilityPatch nowKEVEPSS 11.39%Oct 3, 2026
Recently published
Browse catalog- High8.5Improper link resolution before file access ('link following') vulnerability in Citrix UniconOS.Check if you run itEPSS 0.20%Oct 13, 2026
- Medium5.1Vulnerability in Citrix UniconOS leading to Arbitrary file read and write This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.Check if you run itEPSS 0.40%Oct 13, 2026
- Medium6.9Vulnerability in Citrix UniconOS leading to Persistent Command Execution This issue affects UniconOS: before 2607.2 CR and before 2603 LTSR CU2.Check if you run itEPSS 0.26%Oct 13, 2026
- High8.8XSA-501 was about issues with v1 -> v2 and v2 -> v1 changes racing certain other grant table operations.Check if you run itEPSS 0.15%Oct 13, 2026
- Medium4.7With its original introduction, GNTTAB_cache_flush was made available uniformly.Check if you run itEPSS 0.15%Oct 13, 2026
- Medium5.8Out-of-bounds read vulnerability in Citirx Citrix Workspace app for Windows.Check if you run itEPSS 0.11%Oct 13, 2026
- Medium6.8Out-of-bounds write vulnerability in Citrix Workspace app for Windows.Check if you run itEPSS 0.13%Oct 13, 2026
- High8.7Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer VulnerabilityPatch nowKEVEPSS 11.39%Oct 3, 2026
- Critical9.5Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer VulnerabilityPatch nowKEVEPSS 78.16%Sep 27, 2026
- Critical9.5Citrix NetScaler Improper Input Validation VulnerabilityPatch nowKEVEPSS 82.16%Sep 27, 2026