{"id":85641,"date":"2025-11-09T00:07:21","date_gmt":"2025-11-09T00:07:21","guid":{"rendered":""},"modified":"2025-11-11T11:04:07","modified_gmt":"2025-11-11T17:04:07","slug":"cve-2025-54262-out-of-bounds-read-vulnerability-in-substance3d-stager","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-54262-out-of-bounds-read-vulnerability-in-substance3d-stager\/","title":{"rendered":"<strong>CVE-2025-54262: Out-of-Bounds Read Vulnerability in Substance3D &#8211; Stager<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The CVE-2025-54262 is a critical vulnerability that affects Substance3D &#8211; Stager versions 3.1.3 and earlier. The vulnerability allows an attacker to execute arbitrary code in the context of the current user, potentially leading to data leakage or full system compromise. It&#8217;s crucial to address this vulnerability due to its high severity and broad impact.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-54262<br \/>\nSeverity: High, CVSS 7.8<br \/>\nAttack Vector: File-based<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: Potential <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-2945-critical-remote-code-execution-vulnerability-in-pgadmin-4\/\"  data-wpil-monitor-id=\"92507\">execution of arbitrary code<\/a>, data leakage, or full system compromise<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3052629409\" 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>Substance3D &#8211; Stager | 3.1.3 and earlier<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit works by an attacker crafting a malicious file that causes an <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47755-out-of-bounds-read-vulnerability-in-v-sft-v6-2-5-0-and-earlier\/\"  data-wpil-monitor-id=\"92408\">out-of-bounds read<\/a> when parsed by Substance3D &#8211; Stager. This read past the end of an allocated memory structure allows the attacker to execute arbitrary code in the context of the current user.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3587286989\" 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>Below is a conceptual example of a malicious <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52812-a-critical-php-remote-file-inclusion-vulnerability-in-apuswp-domnoo\/\"  data-wpil-monitor-id=\"92385\">file that could trigger the vulnerability<\/a>. This is not actual code, but rather a representation of what a malicious payload might look like:<\/p>\n<pre><code class=\"\" data-line=\"\"># Crafted file with malicious payload\nfile_header = &#039;Substance3D File&#039;\npayload = &#039;A&#039; * 1024 * 1024  # Oversized payload resulting in out-of-bounds read\nfile_content = file_header + payload\n# Save to file\nwith open(&#039;malicious.s3d&#039;, &#039;w&#039;) as f:\nf.write(file_content)<\/code><\/pre>\n<p>This crafted file, when opened by a victim using an affected version of Substance3D &#8211; Stager, would trigger the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30318-out-of-bounds-write-vulnerability-in-indesign-desktop\/\"  data-wpil-monitor-id=\"92406\">out-of-bounds read vulnerability<\/a> and potentially allow the attacker to execute arbitrary code.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>Users are advised to apply the vendor-supplied patch as soon as possible. As a temporary mitigation, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to detect and block attempts to exploit this vulnerability.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The CVE-2025-54262 is a critical vulnerability that affects Substance3D &#8211; Stager versions 3.1.3 and earlier. The vulnerability allows an attacker to execute arbitrary code in the context of the current user, potentially leading to data leakage or full system compromise. It&#8217;s crucial to address this vulnerability due to its high severity and broad impact. [&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-85641","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\/85641","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=85641"}],"version-history":[{"count":4,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/85641\/revisions"}],"predecessor-version":[{"id":85792,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/85641\/revisions\/85792"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=85641"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=85641"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=85641"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=85641"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=85641"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=85641"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=85641"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=85641"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=85641"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}