Ce mail provient de l'extérieur, restons vigilants ===================================================================== CERT-Renater Note d'Information No. 2026/VULN329 _____________________________________________________________________ DATE : 25/03/2026 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running NetScaler ADC and NetScaler Gateway versions prior to 14.1-66.59, 13.1-62.23, NetScaler ADC FIPS and NDcPP versions prior to 13.1-37.262. ===================================================================== https://support.citrix.com/support-home/kbsearch/article?articleNumber=CTX696300 _____________________________________________________________________ NetScaler ADC and NetScaler Gateway Security Bulletin for CVE-2026-3055 and CVE-2026-4368 Article Id : CTX696300 Last Modified Date : 03-23-2026 09:16 Created Date : 03-23-2026 09:37 Article Record Type : Security Bulletin Severity : Critical Summary Severity - Critical Description of Problem Vulnerabilities have been discovered in NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway). Refer below for further details. Affected Versions: The following supported versions of NetScaler ADC and NetScaler Gateway are affected by the vulnerabilities: CVE-2026-3055: NetScaler ADC and NetScaler Gateway 14.1 BEFORE 14.1-66.59 NetScaler ADC and NetScaler Gateway 13.1 BEFORE 13.1-62.23 NetScaler ADC FIPS and NDcPP BEFORE 13.1-37.262 CVE-2026-4368: NetScaler ADC and NetScaler Gateway  14.1-66.54 Note: This bulletin only applies to customer-managed NetScaler ADC and NetScaler Gateway. Cloud Software Group upgrades Citrix-managed cloud services and Citrix-managed Adaptive Authentication with the necessary software updates. Details NetScaler ADC and NetScaler Gateway are affected by the vulnerabilities mentioned below: CVE-ID Description Pre-conditions CWE CVSS v4.0 CVE-2026-3055 Insufficient input validation leading to memory overread Citrix ADC or Citrix Gateway must be configured as a SAML IDP CWE-125: Out-of-bounds Read CVSS v4.0 Base Score: 9.3 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L) CVE-2026-4368 Race Condition leading to User Session Mixup Appliance must be configured as: Gateway (SSL VPN, ICA Proxy, CVPN, RDP Proxy) OR AAA virtual server CWE-362: Race Condition CVSS v4.0 Base Score: 7.7 (CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N) What Customers Should Do CVE 2026-3055 was identified internally through our ongoing security reviews and broader efforts to strengthen the security of the product. Cloud Software Group strongly urges affected customers of NetScaler ADC and NetScaler Gateway to install the relevant updated versions as soon as possible. NetScaler ADC and NetScaler Gateway 14.1-66.59 and later releases NetScaler ADC and NetScaler Gateway 13.1-62.23 and later releases of 13.1 NetScaler ADC 13.1-FIPS and 13.1-NDcPP 13.1.37.262 and later releases of 13.1-FIPS and 13.1-NDcPP Note: Customers are recommended to upgrade their appliances to one of the supported versions that address the vulnerabilities. CVE-2026-3055 : Customers can determine if they have an appliance configured as a SAML IDP Profile by inspecting their NetScaler Configuration for the specified string: add authentication samlIdPProfile .* CVE-2026-4368 Customers can determine if they have an appliance configured as one of the following by inspecting their NetScaler Configuration for the specified strings An Auth Server (AAA Vserver): add authentication vserver .* A Gateway (VPN Vserver, ICA Proxy, CVPN, RDP Proxy) : add vpn vserver .* Additional information / Reference What Citrix is Doing Citrix is notifying customers and channel partners about this potential security issue through the publication of this security bulletin on the Citrix Knowledge Center at https://support.citrix.com/support-home/topic-article-list?trendingCategory=20&trendingTopicName=Security%20Bulletin Obtaining Support on This Issue If you require technical assistance with this issue, please contact Citrix Technical Support. Contact details for Citrix Technical Support are available at https://support.citrix.com/support-home/home Subscribe to Receive Alerts Citrix strongly recommends that all customers subscribe to receive alerts when a Citrix security bulletin is created or modified at https://support.citrix.com/wolken-support/view/aboutsupport/my-support-alerts Reporting Security Vulnerabilities to Citrix Citrix welcomes input regarding the security of its products and considers any and all potential vulnerabilities seriously. For details on our vulnerability response process and guidance on how to report security-related issues to Citrix, please see the following webpage: https://www.cloud.com/trust-center/support Changelog 2026-03-23 Initial Publication Disclaimer The information on this page is being provided to you on an "AS IS" and "AS-AVAILABLE" basis. The issues described on this page may or may not impact your system(s). 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