{"id":49453,"date":"2025-06-07T03:44:01","date_gmt":"2025-06-07T03:44:01","guid":{"rendered":""},"modified":"2025-09-03T20:47:59","modified_gmt":"2025-09-04T02:47:59","slug":"cve-2025-25230-elevation-of-privileges-vulnerability-in-omnissa-horizon-client-for-windows","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-25230-elevation-of-privileges-vulnerability-in-omnissa-horizon-client-for-windows\/","title":{"rendered":"<strong>CVE-2025-25230: Elevation of Privileges Vulnerability in Omnissa Horizon Client for Windows<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity landscape is constantly evolving, with new threats emerging every day. One of these threats is CVE-2025-25230, a recently discovered vulnerability in Omnissa Horizon Client for Windows. This vulnerability is concerning due to its potential to allow a local attacker to elevate privileges, potentially leading to system compromise or <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48383-django-select2-vulnerability-risking-data-leakage-and-unauthorized-access\/\"  data-wpil-monitor-id=\"56128\">data leakage<\/a>. As a trusted platform for <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-33064-heap-based-buffer-overflow-vulnerability-in-windows-routing-and-remote-access-service-rras\/\"  data-wpil-monitor-id=\"60846\">remote desktop access<\/a>, any security flaw in Horizon Client is a cause for concern, particularly for businesses and organizations that rely on it for their operations.<br \/>\nThis blog post will provide an in-depth look at CVE-2025-25230, what it involves, and how it could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2021-47669-linux-kernel-vulnerability-allowing-potential-system-compromise\/\"  data-wpil-monitor-id=\"58106\">potentially be used against affected systems<\/a>. We&#8217;ll also provide guidance for mitigating this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27528-deserialization-of-untrusted-data-vulnerability-in-apache-inlong\/\"  data-wpil-monitor-id=\"56175\">vulnerability to help protect your systems and data<\/a>.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-25230<br \/>\nSeverity: High (7.8 CVSS score)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32309-potential-system-compromise-due-to-remote-file-inclusion-in-php-program\/\"  data-wpil-monitor-id=\"56603\">Potential system compromise<\/a> or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2675480493\" class=\"ameeb-content-2 ameeb-entity-placement\"><div style=\"border-left: 4px solid #555; padding-left: 20px; margin: 48px 0; font-family: Roboto, sans-serif; color: #ffffff; line-height: 1.6; max-width: 700px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 20px; font-weight: 600; display: flex; align-items: center;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 8px;\">\r\n      <img decoding=\"async\" src=\"https:\/\/www.ameeba.com\/blog\/wp-content\/uploads\/2025\/10\/Best-App-icon-Ameeba.png\" alt=\"Ameeba Chat Icon\" style=\"width: 40px; height: 40px;\" \/>\r\n    <\/a>\r\n    A new way to communicate\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 12px;\">\r\n    Ameeba Chat is built on encrypted identity, not personal profiles.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 16px;\">\r\n    Message, call, share files, and coordinate with identities kept separate.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 20px;\">\r\n    <li>\u2022 Encrypted identity<\/li>\r\n    <li>\u2022 Ameeba Chat authenticates access<\/li>\r\n    <li>\u2022 Aliases and categories<\/li>\r\n    <li>\u2022 End-to-end encrypted chat, calls, and files<\/li>\r\n    <li>\u2022 Secure notes for sensitive information<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px;\">\r\n    Private communication, rethought.\r\n  <\/p>\r\n\r\n  <div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\/download\" style=\"background-color: #ffffff; color: #000000; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Download Ameeba Chat<\/a>\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Learn More<\/a>\r\n  <\/div>\r\n<\/div>\r\n<\/div>\n<p>Product | Affected Versions<\/p>\n<p>Omnissa Horizon Client for <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8088-path-traversal-vulnerability-in-windows-version-of-winrar\/\"  data-wpil-monitor-id=\"78680\">Windows | All current versions<\/a><\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>CVE-2025-25230 is an elevation of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-51392-privilege-escalation-vulnerability-in-openknowledgemaps-headstart-v7\/\"  data-wpil-monitor-id=\"57273\">privileges vulnerability<\/a>. This type of vulnerability exists when a lower-privileged user or process can gain higher <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31263-critical-memory-handling-vulnerability-could-lead-to-system-compromise-or-data-leakage-in-macos-sequoia-15-4\/\"  data-wpil-monitor-id=\"57274\">privileges<\/a> than intended by the system&#8217;s design. In the case of the Omnissa Horizon Client for Windows, a malicious actor with local <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39350-unauthorized-access-vulnerability-in-rocket-apps-wproject\/\"  data-wpil-monitor-id=\"55664\">access to the system may exploit this vulnerability<\/a> to gain elevated privileges. This could potentially allow the actor to execute commands with higher permissions, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5100-a-double-free-vulnerability-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"56602\">potentially leading to system<\/a> compromise or data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3696417946\" class=\"ameeb-content ameeb-entity-placement\"><div class=\"poptin-embedded\" data-id=\"f6b387694f681\"><\/div>\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\n<p>The following is a conceptual example of how the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-45997-exploiting-file-upload-vulnerability-in-web-based-pharmacy-product-management-system\/\"  data-wpil-monitor-id=\"57275\">vulnerability might be exploited<\/a>. Note that this is a simplified representation and the actual exploitation would likely involve more complex techniques and payloads.<\/p>\n<pre><code class=\"\" data-line=\"\">C:\\&gt; runas \/user:Administrator &quot;HorizonClient.exe&quot;\nEnter the password for Administrator: [malicious actor enters their password]\nAttempting to start HorizonClient.exe as user &quot;Administrator&quot; ...<\/code><\/pre>\n<p>In this example, the `runas` command is used to attempt to run the Horizon Client as an Administrator user. If the vulnerability is successfully exploited, the Horizon Client would run with Administrator privileges, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31259-vulnerability-in-macos-sequoia-allowing-for-potential-privilege-escalation\/\"  data-wpil-monitor-id=\"59717\">potentially allowing<\/a> the malicious actor to perform actions that they would not usually be permitted to do. It is important to note that this is a local attack vector, requiring the malicious actor to have physical or <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5491-acer-controlcenter-remote-code-execution-vulnerability-potential-system-compromise\/\"  data-wpil-monitor-id=\"61256\">remote access to the system<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity landscape is constantly evolving, with new threats emerging every day. One of these threats is CVE-2025-25230, a recently discovered vulnerability in Omnissa Horizon Client for Windows. This vulnerability is concerning due to its potential to allow a local attacker to elevate privileges, potentially leading to system compromise or data leakage. As a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[82],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-49453","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-microsoft"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/49453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/comments?post=49453"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/49453\/revisions"}],"predecessor-version":[{"id":71052,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/49453\/revisions\/71052"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=49453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=49453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=49453"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=49453"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=49453"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=49453"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=49453"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=49453"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=49453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}