{"id":63854,"date":"2025-08-10T01:37:49","date_gmt":"2025-08-10T01:37:49","guid":{"rendered":""},"modified":"2025-09-28T04:00:12","modified_gmt":"2025-09-28T10:00:12","slug":"cve-2025-27212-command-injection-vulnerability-in-unifi-access-devices","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-27212-command-injection-vulnerability-in-unifi-access-devices\/","title":{"rendered":"<strong>CVE-2025-27212: Command Injection Vulnerability in UniFi Access Devices<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The recent discovery of the CVE-2025-27212 vulnerability has raised significant concern within the cybersecurity community due to its high severity and the potential for extensive system compromise. This vulnerability specifically affects a range of UniFi Access devices, which could have serious implications for countless businesses and organizations that use these devices for access management. It is particularly alarming as it allows a malicious actor to carry out a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-44960-ruckus-smartzone-os-command-injection-vulnerability\/\"  data-wpil-monitor-id=\"73746\">command injection<\/a> if they gain access to the UniFi Access management network.<br \/>\nThis command injection <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7089-critical-stack-based-buffer-overflow-vulnerability-in-belkin-f9k1122\/\"  data-wpil-monitor-id=\"71416\">vulnerability is a critical<\/a> issue because it can potentially provide an attacker with the ability to execute arbitrary commands on the target system. This opens the door for other malicious activities such as <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-40743-unauthorized-vnc-access-in-sinumerik-systems-due-to-insufficient-password-verification\/\"  data-wpil-monitor-id=\"80320\">unauthorized system<\/a> modifications, data theft, and further system exploitation.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-27212<br \/>\nSeverity: Critical (CVSS Score 9.8)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: None<br \/>\nImpact: Potential system compromise or <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-53495-unauthorized-access-data-leakage-in-wikimedia-foundation-mediawiki-abusefilter-extension\/\"  data-wpil-monitor-id=\"72497\">data leakage<\/a><\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1544723212\" 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>UniFi <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-28041-access-control-vulnerability-in-itranswarp-up-to-version-2-19\/\"  data-wpil-monitor-id=\"85987\">Access Reader Pro | Version<\/a> 2.14.21 and earlier<br \/>\n<a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20309-unauthenticated-remote-access-vulnerability-in-cisco-unified-communications-manager\/\"  data-wpil-monitor-id=\"91942\">UniFi Access<\/a> G2 Reader Pro | Version 1.10.32 and earlier<br \/>\nUniFi Access G3 Reader Pro | Version 1.10.30 and earlier<br \/>\nUniFi Access Intercom | Version 1.7.28 and earlier<br \/>\nUniFi Access G3 Intercom | Version 1.7.29 and earlier<br \/>\nUniFi Access Intercom Viewer | Version 1.3.20 and earlier<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>At a high level, this exploit takes advantage of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47982-improper-input-validation-vulnerability-in-windows-storage-vsp-driver-leading-to-privilege-escalation\/\"  data-wpil-monitor-id=\"75556\">improper input validation<\/a> in certain UniFi Access devices. This flaw allows an attacker to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-51390-command-injection-vulnerability-in-totolink-n600r\/\"  data-wpil-monitor-id=\"73759\">inject malicious commands<\/a> that the system then executes. To carry out this attack, a malicious actor would need <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47955-windows-remote-access-connection-manager-privilege-escalation-vulnerability\/\"  data-wpil-monitor-id=\"74009\">access to the UniFi Access management<\/a> network. This could be achieved through a variety of methods, including but not limited to, social engineering, network intrusion, or exploiting another vulnerability.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3541665634\" 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>This is a conceptual example of how the vulnerability might be exploited. Note that the exact details of the exploit would vary depending on the specific circumstances and the attacker&#8217;s goals.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/unifi\/access\/endpoint HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;command&quot;: &quot;; rm -rf \/&quot; }<\/code><\/pre>\n<p>In this example, the attacker sends a POST request to a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27046-critical-memory-corruption-vulnerability-threatening-system-integrity\/\"  data-wpil-monitor-id=\"75097\">vulnerable endpoint on the target system<\/a>. The request payload includes a command preceded by a semicolon, which in many command-line environments allows for command chaining. The command `rm -rf \/` is a destructive command that, if executed, would <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7778-arbitrary-file-deletion-vulnerability-in-icons-factory-plugin-for-wordpress\/\"  data-wpil-monitor-id=\"79656\">delete all files<\/a> on the target system.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The recent discovery of the CVE-2025-27212 vulnerability has raised significant concern within the cybersecurity community due to its high severity and the potential for extensive system compromise. This vulnerability specifically affects a range of UniFi Access devices, which could have serious implications for countless businesses and organizations that use these devices for access management. [&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":[78],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-63854","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-injection"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/63854","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=63854"}],"version-history":[{"count":11,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/63854\/revisions"}],"predecessor-version":[{"id":85126,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/63854\/revisions\/85126"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=63854"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=63854"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=63854"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=63854"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=63854"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=63854"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=63854"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=63854"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=63854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}