{"id":36551,"date":"2025-05-09T06:52:06","date_gmt":"2025-05-09T06:52:06","guid":{"rendered":""},"modified":"2025-06-01T23:19:22","modified_gmt":"2025-06-02T05:19:22","slug":"cve-2025-36521-out-of-bounds-read-vulnerability-in-microdicom-dicom-viewer","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-36521-out-of-bounds-read-vulnerability-in-microdicom-dicom-viewer\/","title":{"rendered":"<strong>CVE-2025-36521: Out-of-Bounds Read Vulnerability in MicroDicom DICOM Viewer<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>CVE-2025-36521 is a critical vulnerability that exists in the MicroDicom DICOM Viewer, a popular tool used by numerous medical professionals worldwide to view DICOM files-medical images and associated data. This vulnerability poses a significant risk because of its potential to cause memory corruption within the application. This corruption can <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24351-remote-logging-vulnerability-in-ctrlx-os-can-lead-to-root-level-system-compromise\/\"  data-wpil-monitor-id=\"42177\">lead to system<\/a> compromise or data leakage, which could be catastrophic in the healthcare environment where patient data privacy is paramount.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-36521<br \/>\nSeverity: High (8.8\/10)<br \/>\nAttack Vector: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43951-local-file-inclusion-vulnerability-in-labvantage-prior-to-lv-8-8-0-13-hf6\/\"  data-wpil-monitor-id=\"41745\">Local File<\/a><br \/>\nPrivileges Required: User-level<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32974-critical-vulnerability-in-xwiki-s-rights-analysis-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"42266\">Potentially leading to system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-684198863\" 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>MicroDicom DICOM Viewer | All <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43865-critical-spoofing-vulnerability-in-react-router-prior-to-version-7-5-2\/\"  data-wpil-monitor-id=\"41465\">versions prior<\/a> to the patch<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-36861-out-of-bounds-write-vulnerability-in-gtkwave-3-3-115\/\"  data-wpil-monitor-id=\"42460\">vulnerability exploits an out-of-bounds<\/a> read issue in the MicroDicom DICOM Viewer. An attacker can craft a malicious DCM file that, when opened by an unsuspecting user, triggers <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-33120-memory-corruption-vulnerability-in-audio-processing\/\"  data-wpil-monitor-id=\"41387\">memory corruption<\/a> in the DICOM Viewer application. The corrupted memory could lead to unexpected application behavior, including the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-20654-microsoft-odbc-driver-remote-code-execution-vulnerability-a-high-level-threat\/\"  data-wpil-monitor-id=\"41329\">execution of malicious code<\/a> or leakage of sensitive information.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2821228897\" 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>While a specific exploit code is beyond the scope of this post, an attacker would typically <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24189-memory-corruption-vulnerability-due-to-maliciously-crafted-web-content-in-various-operating-systems\/\"  data-wpil-monitor-id=\"53125\">craft a malicious<\/a> DCM file, such as:<\/p>\n<pre><code class=\"\" data-line=\"\">filename: malicious.dcm\ncontent: [malicious code]<\/code><\/pre>\n<p>The victim, believing this to be a standard DCM file, would open it in the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-35975-out-of-bounds-write-vulnerability-in-microdicom-dicom-viewer\/\"  data-wpil-monitor-id=\"42861\">vulnerable MicroDicom DICOM<\/a> Viewer. The malicious code within the file would then execute, leading to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-33085-memory-corruption-vulnerability-in-wearable-technology\/\"  data-wpil-monitor-id=\"41390\">memory corruption<\/a> and potential system compromise or data leakage.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>The most effective mitigation for this vulnerability is to apply the vendor patch as soon as it becomes available. In the meantime, organizations should consider using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as a temporary mitigation measure. These security tools can monitor and block suspicious activities, such as the opening of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-2409-file-corruption-vulnerability-in-aspect-with-potential-for-system-compromise\/\"  data-wpil-monitor-id=\"53124\">potentially malicious DCM files<\/a>.<br \/>\nIn conclusion, this post demonstrates the crucial importance of maintaining software updates and employing robust security measures to protect against <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-36864-integer-overflow-vulnerability-in-gtkwave-3-3-115-with-potential-for-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"42497\">potential vulnerabilities<\/a>. As the CVE-2025-36521 vulnerability shows, even widely-used applications, such as the MicroDicom DICOM Viewer, can have <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32852-critical-sql-injection-vulnerability-in-telecontrol-server-basic\/\"  data-wpil-monitor-id=\"41317\">critical vulnerabilities<\/a> that pose significant risks to systems and data.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview CVE-2025-36521 is a critical vulnerability that exists in the MicroDicom DICOM Viewer, a popular tool used by numerous medical professionals worldwide to view DICOM files-medical images and associated data. This vulnerability poses a significant risk because of its potential to cause memory corruption within the application. This corruption can lead to system compromise or [&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":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-36551","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/36551","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=36551"}],"version-history":[{"count":12,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/36551\/revisions"}],"predecessor-version":[{"id":47582,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/36551\/revisions\/47582"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=36551"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=36551"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=36551"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=36551"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=36551"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=36551"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=36551"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=36551"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=36551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}