CVE-2026-88771 A remote code execution vulnerability exists due to improper input validation, which can allow an unauthenticated attacker to execute arbitrary commands

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...

CVE-2026-88771

Citrix NetScaler ADC and NetScaler Gateway are vulnerable to a critical improper input validation vulnerability (CWE-20). This flaw allows an unauthenticated attacker to execute arbitrary commands remotely. The issue impacts all deployments, including those in default configuration , with no addi...

Citrix NetScaler ADC and Citrix NetScaler Gateway Security Bulletin for CVE-2026-88771, CVE-2026-88772, CVE-2026-88773, CVE-2026-88774, CVE-2026-88775, CVE-2026-88776, CVE-2026-88777, and CVE-2026-88778

Severity - Critical Description of Problem Multiple vulnerabilities have been discovered in Citrix NetScaler ADC formerly Citrix ADC and Citrix NetScaler Gateway formerly Citrix Gateway. Refer below for further details. Affected Versions: The following supported versions of Citrix NetScaler ADC a...

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities KEV Catalog, based on evidence of active exploitation. CVE-2026-88771 Citrix NetScaler Improper Input Validation Vulnerability CVE-2026-88772 Citrix NetScaler Improper Restriction of Operations within the Bounds of a...

Warning: Two Unpatched Citrix NetScaler RCE Zero-Days Under Active Exploitation

Two critical vulnerabilities in Citrix NetScaler ADC and NetScaler Gateway that allow remote code execution have been exploited in the wild, Citrix confirmed on September 27. It released fixes for both, along with six other flaws. One of the two affects every deployment on an affected version,...

Exploit for Improper Restriction of Operations within the Bounds of a Memory Buffer in Citrix Netscaler_Application_Delivery_Controller

Citrix Netscaler CVE-2026-8452 RCE Vulnerability !Banner...

CVE-2026-88778: Predictable Exact Value from Previous Values

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-2026-88774: 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 a feature policy bypass due to improper HTTP...

CVE-2026-88772: Improper Restriction of Operations within the Bounds of a Memory Buffer

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...

PT-2026-99553

Name of the Vulnerable Software and Affected Versions Citrix NetScaler ADC versions prior to 14.1-73.37 Citrix NetScaler ADC versions prior to 13.1-64.23 Citrix NetScaler ADC versions prior to 14.1-73.37 FIPS Citrix NetScaler ADC versions prior to 13.1.37.279 FIPS and NDcPP Citrix NetScaler Gatew...

VulnCheck KEV: CVE-2026-88772

Citrix NetScaler ADC and NetScaler Gateway contain an improper restriction of operations within the bounds of a memory buffer vulnerability that could allow for remote code execution or denial of service...

VulnCheck KEV: CVE-2026-88771

Citrix NetScaler ADC and NetScaler Gateway contain an improper input validation vulnerability that could allow an unauthenticated attacker to execute arbitrary commands...

CVE-2026-88777: Improper Restriction of Operations within the Bounds of a Memory Buffer

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...

CVE-2026-88776: Improper Restriction of Operations within the Bounds of a Memory Buffer

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...

CVE-2026-88775: Buffer Copy without Checking Size of Input

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...

PT-2026-99559

Name of the Vulnerable Software and Affected Versions Citrix NetScaler ADC versions prior to 14.1-73.37 Citrix NetScaler ADC versions prior to 13.1-64.23 Citrix NetScaler ADC versions prior to 14.1-73.37 FIPS Citrix NetScaler ADC versions prior to 13.1.37.279 FIPS and NDcPP Citrix NetScaler Gatew...

PT-2026-99554

Name of the Vulnerable Software and Affected Versions Citrix NetScaler ADC versions prior to 14.1-73.37 Citrix NetScaler ADC versions prior to 13.1-64.23 Citrix NetScaler ADC versions prior to 14.1-73.37 FIPS Citrix NetScaler ADC versions prior to 13.1.37.279 FIPS and NDcPP Citrix NetScaler Gatew...

PT-2026-99560

Name of the Vulnerable Software and Affected Versions Citrix NetScaler ADC versions prior to 14.1-73.37 Citrix NetScaler ADC versions prior to 13.1-64.23 Citrix NetScaler ADC versions prior to 14.1-73.37 FIPS Citrix NetScaler ADC versions prior to 13.1.37.279 FIPS and NDcPP Citrix NetScaler Gatew...

CVE-2026-88773: Inconsistent Interpretation of HTTP Requests

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 FIP...

CVE-2026-88771: Improper Input Validation

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...