{"id":74630,"date":"2025-09-13T12:02:17","date_gmt":"2025-09-13T12:02:17","guid":{"rendered":""},"modified":"2025-09-28T05:55:05","modified_gmt":"2025-09-28T11:55:05","slug":"cve-2025-56266-host-header-injection-vulnerability-in-avigilon-acm","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-56266-host-header-injection-vulnerability-in-avigilon-acm\/","title":{"rendered":"<strong>CVE-2025-56266: Host Header Injection Vulnerability in Avigilon ACM<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>CVE-2025-56266 is a significant cybersecurity vulnerability discovered in the Avigilon Access Control Manager (ACM) software version 7.10.0.20. This vulnerability has the potential to affect a wide range of entities, from small businesses to large corporations, that use the Avigilon ACM for their access control needs. The vulnerability&#8217;s severity lies in its ability to allow attackers to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9060-msoft-mflash-arbitrary-code-execution-vulnerability\/\"  data-wpil-monitor-id=\"82448\">execute arbitrary code<\/a> through a carefully crafted URL, potentially leading to system compromise or data leakage.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-56266<br \/>\nSeverity: Critical (9.8 CVSS Score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22404-potential-system-compromise-due-to-use-after-free-vulnerability\/\"  data-wpil-monitor-id=\"85644\">System compromise<\/a>, potential data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-33442156\" 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-2025-56267-critical-csv-injection-vulnerability-in-avigilon-acm-v7-10-0-20\/\"  data-wpil-monitor-id=\"87758\">Avigilon ACM<\/a> | v7.10.0.20<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit takes advantage of a Host Header <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-57105-command-injection-vulnerability-in-di-7400g-routers\/\"  data-wpil-monitor-id=\"82601\">Injection vulnerability<\/a>. This type of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-57808-critical-vulnerability-in-esphome-web-server-authentication\/\"  data-wpil-monitor-id=\"86059\">vulnerability arises when the server<\/a> trusts the host header and uses its value in a security-critical way. In this case, an attacker can manipulate the host header by supplying a crafted URL. This manipulation can lead to arbitrary <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-50692-critical-code-execution-vulnerability-in-foxcms-v1-2-5\/\"  data-wpil-monitor-id=\"82171\">code execution<\/a>, providing the attacker with access to the system.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2754574157\" 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 vulnerability might be exploited. This is a sample HTTP request where an attacker crafts a malicious payload in the URL:<\/p>\n<pre><code class=\"\" data-line=\"\">GET \/ HTTP\/1.1\nHost: www.victim-site.com:80@evil.com<\/code><\/pre>\n<p>In this example, the attacker has manipulated the host header to redirect the request to &#8216;evil.com&#8217; while the server thinks it is serving &#8216;www.victim-site.com&#8217;. This can potentially allow the attacker to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27128-arbitrary-code-execution-vulnerability-in-openharmony-v5-0-3\/\"  data-wpil-monitor-id=\"82203\">execute arbitrary code<\/a> by injecting it into the &#8216;evil.com&#8217; site.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>The most effective way to mitigate this vulnerability is by applying the vendor-released patch, which addresses the Host Header <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54119-sql-injection-vulnerability-in-adodb-php-database-class-library\/\"  data-wpil-monitor-id=\"82635\">Injection vulnerability<\/a> in the specified version of Avigilon ACM. In the meantime, before the patch can be applied, users can employ a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as temporary mitigation. This can help to monitor and block suspicious activities, thus reducing the chance of a successful exploit.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview CVE-2025-56266 is a significant cybersecurity vulnerability discovered in the Avigilon Access Control Manager (ACM) software version 7.10.0.20. This vulnerability has the potential to affect a wide range of entities, from small businesses to large corporations, that use the Avigilon ACM for their access control needs. The vulnerability&#8217;s severity lies in its ability to allow [&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":[],"product":[],"attack_vector":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-74630","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/74630","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=74630"}],"version-history":[{"count":8,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/74630\/revisions"}],"predecessor-version":[{"id":80568,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/74630\/revisions\/80568"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=74630"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=74630"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=74630"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=74630"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=74630"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=74630"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=74630"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=74630"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=74630"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}