Citrix Netscaler Application Delivery Controller vulnerabilities
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Published CVEs affecting Citrix Netscaler Application Delivery Controller: 18 record(s), with affected versions and fixes.cpe:2.3:a:citrix:netscaler_application_delivery_controller
CVE-2026-88779
High · 7.5
KEV High · 51 CWE-119 Oct 4, 2026
Citrix NetScaler Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability
Vulnerability in NetScaler ADC and NetScaler Gateway.
This issue affects ADC: before 14.1-73.41, before 13.1-64.28, before 14.1-73.41 FIPS, and before 13.1-37.282; Gateway: before 14.1-73.41 and before 13.1-64.28.
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
CVE-2026-19490
Critical · 9.8
KEV High · 69 Public exploit CWE-288 Aug 19, 2026
Citrix NetScaler Authentication Bypass Using an Alternate Path or Channel Vulnerability
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.
CVE-2026-8655
Critical · 9.8
CWE-119 Jun 30, 2026
Multiple Memory overflow vulnerabilities leading to unpredictable or erroneous behavior and Denial of Service
Multiple Memory overflow vulnerabilities in NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if NetScaler ADC is configured as an LB of type Oracle OR NetScaler ADC is configured as a DNS Proxy OR NetScaler ADC is configured as a DNS recursive resolver deployment
CVE-2026-8451
High · 7.5
CWE-125 Jun 30, 2026
Insufficient input validation leading to memory overread
Insufficient input validation in NetScaler ADC and NetScaler Gateway leading to memory overread if NetScaler ADC or NetScaler Gateway is configured as a SAML IDP
CVE-2026-8452
Critical · 9.8
KEV High · 63 Public exploit CWE-119 Jun 30, 2026
Citrix NetScaler ADC and NetScaler Gateway Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability
Memory overflow vulnerability NetScaler ADC and NetScaler Gateway leading to unpredictable or erroneous behavior and Denial of Service if the appliance is configured as a Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server
CVE-2026-13474
High · 7.5
CWE-401 Jun 30, 2026
Denial of service via malformed HTTP/2 requests
Denial of service via malformed HTTP/2 requests in NetScaler ADC and NetScaler Gateway if HTTP/2 is enabled in HTTP Profile and associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler
CVE-2026-10817
High · 7.5
CWE-125 Jun 30, 2026
Insufficient input validation leading to memory overread
Insufficient input validation leading to memory overread in NetScaler ADC and NetScaler Gateway if the TCP TimeStamp is enabled in TCP Profile and is associated with the virtual server (of type LB, CS, VPN) or the service configured on NetScaler
CVE-2026-10816
High · 7.5
CWE-610 Jun 30, 2026
Arbitrary File Read (Unauthenticated)
Arbitrary File Read (Unauthenticated) in NetScaler ADC and NetScaler Gateway if the access to NSIP, Cluster Management IP or SNIP with management access is enabled
CVE-2026-3055
Critical · 9.8
KEV Urgent · 82 Public exploit CWE-125 Mar 23, 2026
Citrix NetScaler Out-of-Bounds Read Vulnerability
Insufficient input validation in NetScaler ADC and NetScaler Gateway when configured as a SAML IDP leading to memory overread
CVE-2025-7775
Critical · 9.8
KEV High · 66 Public exploit CWE-119 Aug 26, 2025
Citrix NetScaler Memory Overflow Vulnerability
Memory overflow vulnerability leading to Remote Code Execution and/or Denial of Service in NetScaler ADC and NetScaler Gateway when NetScaler is configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server
(OR)
NetScaler ADC and NetScaler Gateway 13.1, 14.1, 13.1-FIPS and NDcPP: LB virtual servers of type (HTTP, SSL or HTTP_QUIC) bound with IPv6 services or servicegroups bound with IPv6 servers
(OR)
NetScaler ADC and NetScaler Gateway 13.1, 14.1, 13.1-FIPS and NDcPP: LB virtual servers of type (HTTP, SSL or HTTP_QUIC) bound with DBS IPv6 services or servicegroups bound with IPv6 DBS servers
(OR)
CR virtual server with type HDX
CVE-2025-6543
Critical · 9.8
KEV High · 65 Public exploit CWE-119 Jun 25, 2025
Citrix NetScaler ADC and Gateway Buffer Overflow Vulnerability
Memory overflow vulnerability leading to unintended control flow and Denial of Service in NetScaler ADC and NetScaler Gateway when configured as Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server
CVE-2025-5777
High · 7.5
KEV Urgent · 87 Public exploit Ransomware CWE-908 Jun 17, 2025
Citrix NetScaler ADC and Gateway Out-of-Bounds Read Vulnerability
Insufficient input validation leading to memory overread when the NetScaler is configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server
CVE-2023-6549
High · 7.5
KEV High · 63 Public exploit CWE-119 Jan 17, 2024
Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability
Improper Restriction of Operations within the Bounds of a Memory Buffer in NetScaler ADC and NetScaler Gateway allows Unauthenticated Denial of Service and Out-Of-Bounds Memory Read
CVE-2023-6548
High · 8.8
KEV High · 54 CWE-94 Jan 17, 2024
Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability
Improper Control of Generation of Code ('Code Injection') in NetScaler ADC and NetScaler Gateway allows an attacker with access to NSIP, CLIP or SNIP with management interface to perform Authenticated (low privileged) remote code execution on Management Interface.
CVE-2023-4966
High · 7.5
KEV Urgent · 99 Public exploit Ransomware CWE-119 Oct 10, 2023
Citrix NetScaler ADC and NetScaler Gateway Buffer Overflow Vulnerability
Sensitive information disclosure in NetScaler ADC and NetScaler Gateway when configured as a Gateway (VPN virtual server, ICA Proxy, CVPN, RDP Proxy) or AAA virtual server.
CVE-2023-3519
Critical · 9.8
KEV Urgent · 100 Public exploit Ransomware CWE-94 Jul 19, 2023
Citrix NetScaler ADC and NetScaler Gateway Code Injection Vulnerability
Unauthenticated remote code execution