{"id":4153,"date":"2026-11-12T16:18:16","date_gmt":"2026-11-12T16:18:16","guid":{"rendered":"https:\/\/thedigitalfortress.us\/?p=4153"},"modified":"2026-11-12T16:18:16","modified_gmt":"2026-11-12T16:18:16","slug":"citrix-patches-12-netscaler-and-secure-access-client-flaws-including-authentication-bypass","status":"publish","type":"post","link":"https:\/\/thedigitalfortress.us\/?p=4153","title":{"rendered":"Citrix Patches 12 NetScaler and Secure Access Client Flaws, Including Authentication Bypass"},"content":{"rendered":"<div>\n<p><span class=\"p-author\"><i class=\"icon-font icon-user\">\ue804<\/i><span class=\"author\">Ravie Lakshmanan<\/span><i class=\"icon-font icon-calendar\">\ue802<\/i><span class=\"author\">Nov 12, 2026<\/span><\/span><span class=\"p-tags\">Vulnerability \/ Network Security<\/span><\/p>\n<\/div>\n<div id=\"articlebody\">\n<div class=\"separator\" style=\"clear: both;\"><a href=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEjDDv_B4B-cVtvwKyLiGQsL804yGC7_xHF7y3yD5_C284fRXBVRAn5Ashy2apgJr-jaoBHRa3ujgXv1jskM53EvP_pFt41CTazYqFT-tQdcukNBeOTzVIpZXVDsdgtup4MJOEdNNZP9SP0FAdIpG1Cnfgo0YgBXzmI_boLV4qSAsVrmYn5wA3GxnPuj21JO\/s1700-nu-rw-lo-l85-e365\/citrix.jpg\" style=\"display: block;  text-align: center; clear: left; float: left;\"><\/a><\/div>\n<p>Citrix has released patches for multiple critical security flaws impacting NetScaler ADC, Citrix NetScaler Gateway, and NetScaler Console that could lead to denial-of-service (DoS) or an authentication bypass.<\/p>\n<p>The <a href=\"https:\/\/support.citrix.com\/support-home\/kbsearch\/article?articleNumber=CTX697305\" target=\"_blank\">critical vulnerabilities<\/a> that impact NetScaler ADC and NetScaler Gateway are listed below &#8211;<\/p>\n<ul>\n<li><strong>CVE-2026-120868<\/strong> (CVSS score: 9.3) &#8211; A memory overflow vulnerability in Packet Processing can lead to unpredictable or erroneous behavior or DoS. (All NetScaler ADC and NetScaler Gateway deployments)<\/li>\n<li><strong>CVE-2026-107407<\/strong> (CVSS score: 9.3) &#8211; A memory overflow vulnerability in SMPP traffic can lead to unpredictable or erroneous behavior or DoS. (NetScaler ADC configured with a Load Balancing or Content Switching virtual server of type SMPP)<\/li>\n<li><strong>CVE-2026-107408<\/strong> (CVSS score: 9.3) &#8211; A memory corruption vulnerability in DNS \/ DNS-over-HTTPS (DoH) can lead to unpredictable or erroneous behavior or DoS. (NetScaler ADC configured for DNS load balancing and recursive DNS resolution)<\/li>\n<li><strong>CVE-2026-107409<\/strong> (CVSS score: 9.3) &#8211; A memory corruption vulnerability in DNS-over-HTTPS (DoH) can lead to unpredictable or erroneous behavior or DoS. (NetScaler configured with DNS Load Balancing over HTTPS)<\/li>\n<li><strong>CVE-2026-107410<\/strong> (CVSS score: 9.3) &#8211; A memory overflow in NetScaler Push can lead to unpredictable or erroneous behavior or DoS. (NetScaler configured as Load Balancing virtual server  of type PUSH)<\/li>\n<li><strong>CVE-2026-107412<\/strong> (CVSS score: 9.5) &#8211; Multiple memory overflow vulnerabilities can lead to unpredictable or erroneous behavior and DoS. (NetScaler configured as a Gateway or an AAA virtual server)<\/li>\n<li><strong>CVE-2026-107415<\/strong> (CVSS score: 9.3) &#8211; A memory overflow vulnerability in Email OTP authentication can lead to unpredictable or erroneous behavior or DoS. (NetScaler ADC or NetScaler Gateway configured with an Email Action)<\/li>\n<li><strong>CVE-2026-111344<\/strong> (CVSS score: 9.3) &#8211; A memory overflow vulnerability in Endpoint Analysis (EPA\/EPAS) can lead to unpredictable or erroneous behavior or DoS. (NetScaler configured as a VPN virtual server or an authentication (AAA) virtual server with Endpoint Analysis)<\/li>\n<li><strong>CVE-2026-120864<\/strong> (CVSS score: 9.3) &#8211; A memory overflow vulnerability in ICA proxy can lead to unpredictable or erroneous behavior or DoS. (NetScaler configured as a Gateway VPN virtual server, an AAA virtual server, or a CR virtual server of type HDX)<\/li>\n<\/ul>\n<div class=\"dog_two clear\">\n<div class=\"cf\"><a href=\"https:\/\/thehackernews.uk\/network-defense-dd\" rel=\"nofollow noopener sponsored\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"lazyload\" alt=\"Cybersecurity\" src=\"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEiWypk5aSrjVVXdRpyJaxKDe9VERLYId6cVdoZUwHGSe-EMh90qROsc-jk3uEKqB8-L4eSpBaka7err1zF86IrsEA4S2IZ8yyEsoZTsiGq2YvGuaCtdFvE8-ej7uEBhLbYJNENjs9umU6qmZCJ1aAzvG-ZDO0NtTVddy5hIGv4FBpDJp8UeOxYEzF5AeuK1\/s728-nu-rw-lo-l85-e36\/core-d.png\" width=\"729\" height=\"91\"\/><\/a><\/div>\n<\/div>\n<p>All the issues have been patched in the following versions &#8211;<\/p>\n<ul>\n<li>Citrix NetScaler ADC\u202fand Citrix NetScaler Gateway 14.1-73.57 and later releases<\/li>\n<li>Citrix NetScaler ADC\u202fand Citrix NetScaler Gateway 13.1-64.39 and later releases of 13.1<\/li>\n<li>Citrix NetScaler ADC 14.1-FIPS 14.1-73.58 FIPS and later releases of 14.1-FIPS<\/li>\n<li>Citrix NetScaler ADC 13.1-FIPS and 13.1-NDcPP 13.1-37.293 and later releases of 13.1-FIPS and 13.1-NDcPP<\/li>\n<\/ul>\n<p>Also addressed by Citrix are a number of flaws in NetScaler Console and Secure Access Client for Windows and Linux &#8211;<\/p>\n<ul>\n<li><strong><a href=\"https:\/\/support.citrix.com\/support-home\/kbsearch\/article?articleNumber=CTX697320\" target=\"_blank\">CVE-2026-120869<\/a><\/strong> (CVSS score: 9.4) &#8211; An improper authentication vulnerability in NetScaler Console can allow an unauthenticated attacker to bypass authentication controls to access restricted resources on the appliance. (Fixed in NetScaler Console 14.1-74.34 and later)<\/li>\n<li><strong><a href=\"https:\/\/support.citrix.com\/support-home\/kbsearch\/article?articleNumber=CTX697280\" target=\"_blank\">CVE-2026-118268<\/a><\/strong> (CVSS score: 8.5) &#8211; An improper privilege management vulnerability in Secure Access Client for Windows can allow a low-privileged user to escalate privileges to SYSTEM. (Fixed in Secure Access Client for Windows 26.11.1.6 and later)<\/li>\n<li><strong><a href=\"https:\/\/support.citrix.com\/support-home\/kbsearch\/article?articleNumber=CTX697281\" target=\"_blank\">CVE-2026-118269<\/a><\/strong> (CVSS score: 8.5) &#8211; An improper privilege management vulnerability in Secure Access Client for Linux can allow a low-privileged user to gain root privileges. (Fixed in Secure Access Client for Linux 26.10.4 and later)<\/li>\n<\/ul>\n<p>The security updates, Citrix said, follow a deeper review of its codebase by integrating artificial intelligence (AI)-assisted code analysis to detect and resolve vulnerabilities with an aim to harden the products before potential threats could materialize.<\/p>\n<p>The company <a href=\"https:\/\/community.citrix.com\/techzone-blogs\/110_security-updates\/security-updates-for-netscaler-adc-netscaler-gateway-and-netscaler-console\/\" target=\"_blank\">said<\/a> it&#8217;s not aware of any exploits for any of the announced vulnerabilities, but urged customers to apply the updates as they are designed to \u00abenhance the security posture of NetScaler.\u00bb <\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\ue804Ravie Lakshmanan\ue802Nov 12, 2026Vulnerability \/ Network Security Citrix has released patches for multiple critical security flaws impacting NetScaler ADC, Citrix NetScaler Gateway, and NetScaler Console that could lead to denial-of-service&hellip;<\/p>\n","protected":false},"author":1,"featured_media":4154,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[130,396,394,764,2533,11,584,842,57,1445],"class_list":["post-4153","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-access","tag-authentication","tag-bypass","tag-citrix","tag-client","tag-flaws","tag-including","tag-netscaler","tag-patches","tag-secure"],"_links":{"self":[{"href":"https:\/\/thedigitalfortress.us\/index.php?rest_route=\/wp\/v2\/posts\/4153","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thedigitalfortress.us\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thedigitalfortress.us\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thedigitalfortress.us\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/thedigitalfortress.us\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4153"}],"version-history":[{"count":0,"href":"https:\/\/thedigitalfortress.us\/index.php?rest_route=\/wp\/v2\/posts\/4153\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thedigitalfortress.us\/index.php?rest_route=\/wp\/v2\/media\/4154"}],"wp:attachment":[{"href":"https:\/\/thedigitalfortress.us\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4153"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thedigitalfortress.us\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4153"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thedigitalfortress.us\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4153"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}