{"id":46509,"date":"2025-05-30T19:30:54","date_gmt":"2025-05-30T19:30:54","guid":{"rendered":""},"modified":"2025-06-27T11:42:57","modified_gmt":"2025-06-27T17:42:57","slug":"cve-2025-2146-critical-buffer-overflow-vulnerability-in-multifunction-printers","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-2146-critical-buffer-overflow-vulnerability-in-multifunction-printers\/","title":{"rendered":"<strong>CVE-2025-2146: Critical Buffer Overflow Vulnerability in Multifunction Printers<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The CVE-2025-2146 vulnerability represents a serious threat to the cybersecurity of small office multifunction and laser printers. Affecting a wide range of models sold in Japan, the United States, and Europe, this buffer overflow vulnerability has the potential to compromise systems or lead to data leakage. Cybersecurity experts are taking this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39356-serious-deserialization-of-untrusted-data-vulnerability-in-chimpstudio-foodbakery-sticky-cart\/\"  data-wpil-monitor-id=\"52581\">vulnerability seriously<\/a>, not only because of its high severity score of 9.8 but also due to the fact that multifunction printers are widely used in both small and large businesses worldwide.<br \/>\nThis vulnerability matters because an attacker on the same network segment can exploit it to render the affected product unresponsive or to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-45351-xiaomi-game-center-application-code-execution-vulnerability\/\"  data-wpil-monitor-id=\"52127\">execute arbitrary code<\/a>. This potentially <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-48853-root-access-vulnerability-in-aspect-allowing-escalation-of-privileges\/\"  data-wpil-monitor-id=\"52925\">allows the attacker to gain unauthorized access<\/a> to sensitive data or even take control of the affected system. It is therefore crucial for <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31430-critical-deserialization-of-untrusted-data-vulnerability-in-the-business-software\/\"  data-wpil-monitor-id=\"53421\">businesses to understand this vulnerability<\/a> and take immediate steps to mitigate it.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-2146<br \/>\nSeverity: Critical (CVSS score: 9.8)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39401-unrestricted-file-upload-leading-to-potential-system-compromise-in-mojoomla-wpams\/\"  data-wpil-monitor-id=\"52128\">System compromise<\/a>, data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2999674550\" 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: 720px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 22px; font-weight: 600; display: flex; align-items: center; letter-spacing: -0.02em;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 10px;\">\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: 42px; height: 42px;\" \/>\r\n    <\/a>\r\n    Share secrets securely\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 14px; color: #d1d5db;\">\r\n    Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 18px; color: #a1a1aa;\">\r\n    Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 24px; color: #e4e4e7;\">\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Encrypted identity<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Private Spaces for organizations and teams<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 End-to-end encrypted chat, calls, files, and notes<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Sensitive AI work and protected collaboration<\/li>\r\n    <li>\u2022 Built for information that cannot leak<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px; color: #ffffff;\">\r\n    Our mission is to secure human work alongside AI.\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: 8px; font-weight: 500;\">\r\n      Download Ameeba\r\n    <\/a>\r\n\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 8px; font-weight: 500;\">\r\n      Learn More\r\n    <\/a>\r\n  <\/div>\r\n<\/div><\/div>\n<p>Product | Affected Versions<\/p>\n<p>Satera MF656Cdw | firmware v05.07 and earlier<br \/>\nColor imageCLASS MF656Cdw | firmware v05.07 and earlier<br \/>\ni-SENSYS MF657Cdw | firmware v05.07 and earlier<br \/>\n&#8230; | &#8230;<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-50671-heap-based-buffer-overflow-vulnerability-in-exiftags-1-01\/\"  data-wpil-monitor-id=\"51981\">buffer overflow vulnerability<\/a> occurs in the WebService Authentication processing of the affected printers. A <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-0582-a-potentially-dangerous-memory-leak-vulnerability-in-linux-kernel-s-io-uring-functionality\/\"  data-wpil-monitor-id=\"51982\">buffer<\/a> overflow is a type of software vulnerability that occurs when too much data is loaded into a buffer &#8211; a temporary storage location in the system&#8217;s memory. When the buffer is filled beyond its capacity, the excess data spills over into adjacent memory locations, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-44898-critical-stack-overflow-vulnerability-in-fw-wgs-804hpt-resulting-in-potential-system-compromise\/\"  data-wpil-monitor-id=\"52637\">potentially overwriting important data or causing the system<\/a> to crash.<br \/>\nIn this case, an attacker can send specially crafted data packets to the printer, causing the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4831-critical-buffer-overflow-vulnerability-in-totolink-routers\/\"  data-wpil-monitor-id=\"52193\">buffer overflow<\/a> in the WebService Authentication processing. This can trigger the printer to become unresponsive or allow the attacker to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-51360-remote-code-execution-vulnerability-in-hospital-management-system-in-php-v4-0\/\"  data-wpil-monitor-id=\"54373\">execute arbitrary code<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3555912923\" 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 conceptual example of how an attacker might exploit this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4829-critical-buffer-overflow-vulnerability-in-totolink-http-post-request-handler\/\"  data-wpil-monitor-id=\"52201\">vulnerability using a malicious payload in an HTTP POST request:<\/a><\/p>\n<pre><code class=\"\" data-line=\"\">POST \/WebService\/Authentication HTTP\/1.1\nHost: target_printer_ip\nContent-Type: application\/octet-stream\n{ &quot;username&quot;: &quot;admin&quot;, &quot;password&quot;: &quot;A&quot; * 1000000 }<\/code><\/pre>\n<p>In this example, the &#8220;A&#8221; * 1000000 represents a large amount of data that exceeds the buffer&#8217;s capacity, leading to a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4824-critical-buffer-overflow-vulnerability-in-totolink-routers\/\"  data-wpil-monitor-id=\"52194\">buffer overflow<\/a>. This is a simplified example and the actual <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49796-exploiting-libxml2-memory-corruption-for-denial-of-service-and-data-leakage\/\"  data-wpil-monitor-id=\"61815\">exploit would likely involve more complex and specific data<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The CVE-2025-2146 vulnerability represents a serious threat to the cybersecurity of small office multifunction and laser printers. Affecting a wide range of models sold in Japan, the United States, and Europe, this buffer overflow vulnerability has the potential to compromise systems or lead to data leakage. Cybersecurity experts are taking this vulnerability seriously, not [&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":[86],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-46509","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-microsoft","attack_vector-buffer-overflow"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/46509","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=46509"}],"version-history":[{"count":12,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/46509\/revisions"}],"predecessor-version":[{"id":55487,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/46509\/revisions\/55487"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=46509"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=46509"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=46509"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=46509"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=46509"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=46509"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=46509"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=46509"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=46509"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}