Citrix NetScaler Gateway vulnerabilities
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Published CVEs affecting Citrix NetScaler Gateway: 8 record(s), with affected versions and fixes.
CVE-2026-88778
High · 7.5
CWE-342 Sep 27, 2026
TCP Initial Sequence Number (ISN) prediction
Predictable exact value from previous values vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23.
CVE-2026-88777
Critical · 9.8
CWE-119 Sep 27, 2026
Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to unpredictable or erroneous behavior or Denial of Service
CVE-2026-88776
Critical · 9.8
CWE-119 Sep 27, 2026
Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Memory overflow vulnerability vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to unpredictable or erroneous behavior or Denial of Service
CVE-2026-88775
Critical · 9.8
CWE-120 Sep 27, 2026
Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
Memory overflow vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading Memory overflow vulnerability leading to unpredictable or erroneous behavior or Denial of Service
CVE-2026-88774
High · 7.2
CWE-20 Sep 27, 2026
Feature policy bypass due to improper HTTP URL based expression usage
Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to a feature policy bypass due to improper HTTP URL based expression usage.
CVE-2026-88773
Critical · 10.0
CWE-444 Sep 27, 2026
HTTP Request Smuggling
Inconsistent interpretation of HTTP requests ('HTTP Request/Response smuggling') vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1-37.279 and NDcPP; Gateway: before 14.1-73.37 FIPS and before 13.1-64.23.
CVE-2026-88771
Critical · 9.8
KEV High · 64 Public exploit CWE-20 Sep 27, 2026
Citrix NetScaler Improper Input Validation Vulnerability
Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to an unauthenticated attacker to execute arbitrary commands.
CVE-2026-88772
High · 8.1
KEV High · 57 Public exploit CWE-119 Sep 27, 2026
Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability
Vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway.
This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS, and before 13.1.37.279 FIPS and NDcPP; Gateway: before 14.1-73.37 and before 13.1-64.23 leading to Remote Code Execution or Denial of Service