{"id":53654,"date":"2025-06-19T19:46:31","date_gmt":"2025-06-19T19:46:31","guid":{"rendered":""},"modified":"2025-07-05T11:19:28","modified_gmt":"2025-07-05T17:19:28","slug":"cve-2025-36633-critical-privilege-escalation-vulnerability-in-tenable-agent-on-windows","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-36633-critical-privilege-escalation-vulnerability-in-tenable-agent-on-windows\/","title":{"rendered":"<strong>CVE-2025-36633: Critical Privilege Escalation Vulnerability in Tenable Agent on Windows<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity landscape constantly evolves with new vulnerabilities being identified regularly. One such security flaw that has garnered attention recently is the CVE-2025-36633. This vulnerability has been identified in <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5853-critical-vulnerability-in-tenda-ac6-router-may-lead-to-system-compromise\/\"  data-wpil-monitor-id=\"60031\">Tenable Agent<\/a> versions prior to 10.8.5 on a Windows host system. It is a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49136-critical-vulnerability-in-listmonk-allows-unauthorized-access-to-sensitive-environment-variables\/\"  data-wpil-monitor-id=\"60361\">critical issue that allows<\/a> non-administrative users to arbitrarily delete local system files with SYSTEM privilege. This potentially leads to local <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47601-privilege-escalation-vulnerability-in-christiaan-pieterse-maxiblocks\/\"  data-wpil-monitor-id=\"60112\">privilege escalation<\/a>, putting your data integrity and system security at risk.<br \/>\nThe <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30220-high-severity-xml-external-entity-xxe-vulnerability-in-geoserver-geotools-and-geonetwork\/\"  data-wpil-monitor-id=\"60597\">severity of the CVE-2025-36633 vulnerability<\/a> cannot be overstated. With a CVSS severity score of 8.8, it poses a significant risk to businesses and individuals alike. This vulnerability, if exploited, could result in <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5866-critical-vulnerability-in-rt-thread-5-1-0-potentially-leading-to-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"63848\">system compromise or data<\/a> leakage, creating a potential disaster for affected organizations and individuals.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-36633<br \/>\nSeverity: Critical, CVSS score 8.8<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: Low (Non-Administrative Privileges)<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5901-buffer-overflow-vulnerability-in-totolink-t10-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"60598\">Potential system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-118566732\" 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>Tenable Agent | <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49137-critical-vulnerability-in-hax-cms-php-prior-to-version-11-0-0\/\"  data-wpil-monitor-id=\"61954\">Versions prior<\/a> to 10.8.5<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit takes advantage of a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-40574-critical-permissions-flaw-in-scalance-lpe9403\/\"  data-wpil-monitor-id=\"64106\">flaw in the Tenable Agent&#8217;s permissions<\/a> system on Windows hosts. A non-administrative user with low-level <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-57190-critical-incorrect-access-control-vulnerability-in-erxes\/\"  data-wpil-monitor-id=\"60433\">access to the system can exploit this vulnerability<\/a> by sending specially crafted inputs to the Tenable Agent. This input instructs the agent to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6065-arbitrary-file-deletion-vulnerability-in-image-resizer-on-the-fly-wordpress-plugin\/\"  data-wpil-monitor-id=\"61419\">delete system files<\/a> that should normally be protected. Due to the flaw, the agent carries out this action with SYSTEM <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23974-incorrect-privilege-assignment-in-ifkooo-one-login-leads-to-privilege-escalation\/\"  data-wpil-monitor-id=\"60239\">privileges leading<\/a> to arbitrary deletion of system files. This can potentially lead to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48129-privilege-escalation-vulnerability-in-spreadsheet-price-changer-for-woocommerce-and-wp-e-commerce-light\/\"  data-wpil-monitor-id=\"60257\">privilege escalation<\/a> and system compromise.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-4126534403\" 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 pseudocode is a conceptual example of how the vulnerability might be exploited:<\/p>\n<pre><code class=\"\" data-line=\"\"># User with low-level (non-admin) access\nuser&gt; tenable_agent --delete C:\\Windows\\System32\\critical_file.sys\n# Tenable Agent performs the action with SYSTEM privileges\ntenable_agent(SYSTEM)&gt; rm C:\\Windows\\System32\\critical_file.sys<\/code><\/pre>\n<p>In this example, a non-admin user instructs the Tenable Agent to delete a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32291-critical-file-upload-vulnerability-in-fantasticplugins-sumo-affiliates-pro\/\"  data-wpil-monitor-id=\"60208\">critical system file<\/a>. The agent, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49013-code-injection-vulnerability-in-wilderforge-projects-due-to-unsafe-github-actions-usage\/\"  data-wpil-monitor-id=\"60091\">due to the vulnerability<\/a>, performs the action with SYSTEM privileges, leading to the deletion of the critical file. This could pave the way for further malicious activity like <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47561-incorrect-privilege-assignment-leads-to-privilege-escalation-in-romancode-mapsvg\/\"  data-wpil-monitor-id=\"60348\">privilege escalation<\/a> or system compromise.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>The primary <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39486-rankie-sql-injection-vulnerability-and-mitigation-measures\/\"  data-wpil-monitor-id=\"63849\">mitigation for this vulnerability<\/a> is to apply the vendor-provided patch. Tenable has released version 10.8.5 of the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-36631-critical-file-overwrite-vulnerability-in-tenable-agent\/\"  data-wpil-monitor-id=\"61866\">agent<\/a> that addresses this vulnerability. Users are advised to update to this version as soon as possible.<br \/>\nFor those unable to apply the patch immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help as a temporary mitigation measure. These systems can be configured to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-45984-critical-command-injection-vulnerability-detected-in-blink-routers\/\"  data-wpil-monitor-id=\"61370\">detect and block suspicious activity related to this vulnerability<\/a>. However, it&#8217;s crucial to understand that these are just temporary solutions and updating the Tenable Agent should be the priority.<br \/>\nRemember, staying vigilant and keeping your systems up-to-date are the most effective ways to maintain your cybersecurity posture.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity landscape constantly evolves with new vulnerabilities being identified regularly. One such security flaw that has garnered attention recently is the CVE-2025-36633. This vulnerability has been identified in Tenable Agent versions prior to 10.8.5 on a Windows host system. It is a critical issue that allows non-administrative users to arbitrarily delete local system [&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":[76],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-53654","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-microsoft","attack_vector-privilege-escalation"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/53654","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=53654"}],"version-history":[{"count":16,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/53654\/revisions"}],"predecessor-version":[{"id":57627,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/53654\/revisions\/57627"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=53654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=53654"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=53654"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=53654"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=53654"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=53654"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=53654"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=53654"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=53654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}