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CVEs with exploitation confirmed by CISA (Known Exploited Vulnerabilities), with required actions and deadlines.

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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 · 58 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-2026-8452 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-2026-3055 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-2024-8069 High · 8.0 KEV High · 61 Public exploit CWE-502 Nov 12, 2024
Citrix Session Recording Deserialization of Untrusted Data Vulnerability
Limited remote code execution with privilege of a NetworkService Account access in Citrix Session Recording if the attacker is an authenticated user on the same intranet as the session recording server
CVE-2024-8068 High · 8.0 KEV High · 60 Public exploit CWE-269 Nov 12, 2024
Citrix Session Recording Improper Privilege Management Vulnerability
Privilege escalation to NetworkService Account access in Citrix Session Recording when an attacker is an authenticated user in the same Windows Active Directory domain as the session recording server domain
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
CVE-2023-24489 Critical · 9.8 KEV Urgent · 73 Public exploit CWE-284 Jul 10, 2023
Citrix Content Collaboration ShareFile Improper Access Control Vulnerability
A vulnerability has been discovered in the customer-managed ShareFile storage zones controller which, if exploited, could allow an unauthenticated attacker to remotely compromise the customer-managed ShareFile storage zones controller.
CVE-2022-27518 Critical · 9.8 KEV Urgent · 78 Public exploit CWE-664 Dec 13, 2022
Citrix Application Delivery Controller (ADC) and Gateway Authentication Bypass Vulnerability
Unauthenticated remote arbitrary code execution
CVE-2021-22941 Critical · 9.8 KEV Urgent · 79 Public exploit Ransomware CWE-284 Sep 23, 2021
Citrix ShareFile Improper Access Control Vulnerability
Improper Access Control in Citrix ShareFile storage zones controller before 5.11.20 may allow an unauthenticated attacker to remotely compromise the storage zones controller.
CVE-2020-8196 Medium · 4.3 KEV High · 53 CWE-287 Jul 10, 2020
Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability
Improper access control in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and Citrix SDWAN WAN-OP versions before 11.1.1a, 11.0.3d and 10.2.7 resulting in limited information disclosure to low privileged users.
CVE-2020-8195 Medium · 6.5 KEV High · 53 CWE-22 Jul 10, 2020
Citrix ADC, Gateway, and SD-WAN WANOP Appliance Information Disclosure Vulnerability
Improper input validation in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and Citrix SDWAN WAN-OP versions before 11.1.1a, 11.0.3d and 10.2.7 resulting in limited information disclosure to low privileged users.
CVE-2020-8193 Medium · 6.5 KEV High · 66 Public exploit CWE-287 Jul 10, 2020
Citrix ADC, Gateway, and SD-WAN WANOP Appliance Authorization Bypass Vulnerability
Improper access control in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and Citrix SDWAN WAN-OP versions before 11.1.1a, 11.0.3d and 10.2.7 allows unauthenticated access to certain URL endpoints.
CVE-2019-19781 Critical · 9.8 KEV Urgent · 100 Public exploit Ransomware CWE-22 Dec 27, 2019
Citrix ADC, Gateway, and SD-WAN WANOP Appliance Code Execution Vulnerability
An issue was discovered in Citrix Application Delivery Controller (ADC) and Gateway 10.5, 11.1, 12.0, 12.1, and 13.0. They allow Directory Traversal.
CVE-2019-13608 High · 7.5 KEV Urgent · 73 Public exploit Ransomware CWE-611 Aug 29, 2019
Citrix StoreFront Server XML External Entity (XXE) Processing Vulnerability
Citrix StoreFront Server before 1903, 7.15 LTSR before CU4 (3.12.4000), and 7.6 LTSR before CU8 (3.0.8000) allows XXE attacks.
CVE-2019-12991 High · 8.8 KEV High · 64 Public exploit CWE-78 Jul 16, 2019
Citrix SD-WAN and NetScaler Command Injection Vulnerability
Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 have Improper Input Validation (issue 5 of 6).
CVE-2019-12989 Critical · 9.8 KEV Urgent · 75 Public exploit CWE-89 Jul 16, 2019
Citrix SD-WAN and NetScaler SQL Injection Vulnerability
Citrix SD-WAN 10.2.x before 10.2.3 and NetScaler SD-WAN 10.0.x before 10.0.8 allow SQL Injection.