{"id":229102,"date":"2026-03-29T09:41:00","date_gmt":"2026-03-29T13:41:00","guid":{"rendered":"https:\/\/news-you-need.com\/index.php\/2026\/03\/29\/netscaler-bug-cve-2026-3055-probed-by-attackers-could-leak-sensitive-data\/"},"modified":"2026-03-30T05:25:20","modified_gmt":"2026-03-30T09:25:20","slug":"netscaler-bug-cve-2026-3055-probed-by-attackers-could-leak-sensitive-data","status":"publish","type":"post","link":"https:\/\/news-you-need.com\/index.php\/2026\/03\/29\/netscaler-bug-cve-2026-3055-probed-by-attackers-could-leak-sensitive-data\/","title":{"rendered":"NetScaler bug CVE-2026-3055 probed by attackers could leak sensitive data"},"content":{"rendered":"

NetScaler bug CVE-2026-3055 probed by attackers could leak sensitive data<\/a><\/p>\n

https:\/\/securityaffairs.com\/190131\/hacking\/urgent-alert-netscaler-bug-cve-2026-3055-probed-by-attackers-could-leak-sensitive-data.html<\/a><\/p>\n

Publish Date: 2026-03-29 09:41:00<\/a><\/p>\n

Source Domain: securityaffairs.com<\/a><\/p>\n

Urgent Alert: NetScaler bug CVE-2026-3055 probed by attackers could leak sensitive data<\/h2>\n<\/p>\n

\t\t\t\t\t\t\t Pierluigi Paganini<\/span>
\n\t\t\t\t\t\t\t\"\"\/ March 29, 2026<\/span><\/p>\n

\t\t\t\t\t\t\"\"\/<\/p>\n

Attackers are actively probing a critical Citrix NetScaler flaw (CVE-2026-3055) that can leak sensitive data via a memory overread issue.<\/h2>\n

A critical vulnerability, tracked as CVE-2026-3055 (CVSS score of 9.3), in Citrix NetScaler ADC and Gateway is already being actively probed by attackers.<\/p>\n

This week, Citrix issued\u00a0security updates\u00a0for two NetScaler vulnerabilities, including the critical memory overread issue CVE-2026-3055 (CVSS score of 9.3), that allows unauthenticated attackers to leak sensitive data.<\/p>\n

The flaw CVE-2026-3055 is an insufficient input validation leading to memory overread, it can be triggered only if Citrix ADC or Citrix Gateway are configured as a SAML IDP.<\/p>\n

Customers can check if their NetScaler appliance is set up as a SAML IDP by looking for the configuration string:<\/p>\n

add authentication samlIdPProfile .*<\/p>\n

\u201cThis vulnerability,\u00a0CVE-2026-3055, which is classified as an out-of-bounds read and holds a CVSS score of\u00a09.3, allows unauthenticated remote attackers to leak potentially sensitive information from the appliance\u2019s memory.\u201d reads the\u00a0advisory\u00a0published by Rapid7 researchers. \u201cThe Citrix advisory states that\u00a0systems configured as a SAML Identity Provider (SAML IDP) are vulnerable, whereas default configurations are unaffected. This SAML IDP configuration is likely a very common configuration for organizations utilizing single sign-on.\u201d<\/p>\n

At this time, CVE-2026-3055 has no known in-the-wild exploits or public proof-of-concept. Citrix discovered it internally, but once exploit code is released, attacks are likely. Customers should patch immediately, as similar memory-leak flaws like \u201cCitrixBleed\u201d (CVE-2023-4966) were widely exploited in 2023.<\/p>\n

watchTowr Intel researchers are not detecting active reconnaissance against…<\/p>\n

Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

NetScaler bug CVE-2026-3055 probed by attackers could leak sensitive data https:\/\/securityaffairs.com\/190131\/hacking\/urgent-alert-netscaler-bug-cve-2026-3055-probed-by-attackers-could-leak-sensitive-data.html Publish Date: 2026-03-29 09:41:00…<\/p>\n","protected":false},"author":1,"featured_media":229103,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/securityaffairs.com\/wp-content\/uploads\/2019\/03\/Citrix-1.png","fifu_image_alt":"","footnotes":""},"categories":[15],"tags":[31,27],"class_list":["post-229102","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cybersecurity","tag-exploit","tag-vulnerability"],"_links":{"self":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/229102"}],"collection":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/comments?post=229102"}],"version-history":[{"count":1,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/229102\/revisions"}],"predecessor-version":[{"id":229104,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/229102\/revisions\/229104"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media\/229103"}],"wp:attachment":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media?parent=229102"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/categories?post=229102"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/tags?post=229102"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}