{"id":64211,"date":"2025-08-21T08:12:40","date_gmt":"2025-08-21T08:12:40","guid":{"rendered":""},"modified":"2025-10-01T12:50:44","modified_gmt":"2025-10-01T18:50:44","slug":"cve-2025-20265-cisco-secure-firewall-management-center-radius-authentication-vulnerability","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-20265-cisco-secure-firewall-management-center-radius-authentication-vulnerability\/","title":{"rendered":"<strong>CVE-2025-20265: Cisco Secure Firewall Management Center RADIUS Authentication Vulnerability<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In the rapidly evolving world of cybersecurity, a new vulnerability, CVE-2025-2025, has been identified, posing a significant risk to users of Cisco Secure Firewall Management Center (FMC) Software. This vulnerability exists within the Remote Authentication Dial-In User Service (RADIUS) subsystem of the software and could allow an unauthenticated, remote attacker to execute arbitrary shell commands at a high privilege level. It is of particular concern for organizations that have configured their <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20253-critical-vulnerability-in-ikev2-feature-of-cisco-software-could-lead-to-denial-of-service-dos-attack\/\"  data-wpil-monitor-id=\"76190\">Cisco Secure FMC Software<\/a> for RADIUS authentication for the web-based management interface, SSH management, or both.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-20265<br \/>\nSeverity: Critical (CVSS 10.0)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27043-memory-corruption-vulnerability-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"75426\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-967870424\" 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><a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20133-remote-access-ssl-vpn-vulnerability-in-cisco-secure-firewall-asa-software-and-secure-ftd-software\/\"  data-wpil-monitor-id=\"76827\">Cisco Secure Firewall<\/a> Management Center (FMC) Software | All versions prior to the vendor patch<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8028-critical-vulnerability-in-firefox-and-thunderbird-due-to-incorrect-computation-of-branch-address\/\"  data-wpil-monitor-id=\"73855\">vulnerability in question arises due<\/a> to a lack of adequate handling of user input during the authentication phase. An attacker could exploit this vulnerability by sending carefully crafted input when entering <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8031-leakage-of-http-basic-authentication-credentials-in-firefox-and-thunderbird\/\"  data-wpil-monitor-id=\"75425\">credentials that are authenticated<\/a> at the configured RADIUS server. A successful exploit would allow the attacker to run commands at a high privilege level, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49691-heap-based-buffer-overflow-in-windows-media-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"72188\">potentially leading to system<\/a> compromise or data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-257700392\" 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>Here is a generalized example of how an attacker might exploit the vulnerability. This is a conceptual representation and is not intended to work in a real-world scenario.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/radius\/auth HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{\n&quot;username&quot;: &quot;admin&quot;,\n&quot;password&quot;: &quot;password123; rm -rf \/&quot;\n}<\/code><\/pre>\n<p>In the above example, the attacker <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-1740-excessive-authentication-attempts-vulnerability-in-akinsoft-myrezzta\/\"  data-wpil-monitor-id=\"86763\">attempts to authenticate<\/a> with a username and a maliciously crafted password. The password includes a shell command (`rm -rf \/`) following a semi-colon symbol. If the system does not properly sanitize the input, it may treat the command as part of the system commands and execute it, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27055-memory-corruption-leads-to-potential-system-compromise-during-image-encoding\/\"  data-wpil-monitor-id=\"74279\">leading to potential system compromise<\/a>.<\/p>\n<p><strong>Mitigation Measures<\/strong><\/p>\n<p>Given the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54419-critical-vulnerability-in-node-saml-library\/\"  data-wpil-monitor-id=\"71736\">critical severity of this vulnerability<\/a>, it is recommended that affected systems apply the vendor patch as soon as possible. In the interim, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) could be utilized as a temporary mitigation measure. These systems can be configured to detect and block <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-46414-unlimited-pin-attempts-vulnerability-in-api\/\"  data-wpil-monitor-id=\"81276\">attempts to exploit this vulnerability<\/a>.<br \/>\nRemember, the best <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20217-denial-of-service-vulnerability-in-snort-3-detection-engine-of-cisco-secure-firewall-threat-defense-software\/\"  data-wpil-monitor-id=\"76928\">defense against cybersecurity threats is a proactive approach to security<\/a>, which includes regular system updates and patches, as well as continuous monitoring for unusual activities. Stay safe!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In the rapidly evolving world of cybersecurity, a new vulnerability, CVE-2025-2025, has been identified, posing a significant risk to users of Cisco Secure Firewall Management Center (FMC) Software. This vulnerability exists within the Remote Authentication Dial-In User Service (RADIUS) subsystem of the software and could allow an unauthenticated, remote attacker to execute arbitrary shell [&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":[96],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-64211","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-cisco"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64211","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=64211"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64211\/revisions"}],"predecessor-version":[{"id":79603,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64211\/revisions\/79603"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=64211"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=64211"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=64211"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=64211"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=64211"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=64211"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=64211"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=64211"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=64211"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}