{"id":51099,"date":"2025-06-11T05:22:27","date_gmt":"2025-06-11T05:22:27","guid":{"rendered":""},"modified":"2025-07-10T11:21:38","modified_gmt":"2025-07-10T17:21:38","slug":"cve-2025-21470-critical-memory-corruption-vulnerability-in-image-encoding","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-21470-critical-memory-corruption-vulnerability-in-image-encoding\/","title":{"rendered":"<strong>CVE-2025-21470: Critical Memory Corruption Vulnerability in Image Encoding<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity landscape is an ever-evolving field, where new vulnerabilities are discovered, and patches are released regularly. One such vulnerability, identified as CVE-2025-21470, has recently caught the attention of security professionals worldwide. This vulnerability is a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-0358-privilege-escalation-vulnerability-in-vapix-device-configuration-framework\/\"  data-wpil-monitor-id=\"57886\">memory corruption issue that occurs during image<\/a> encoding when the configuration is NULL in IOCTL parameter. Its widespread <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-21453-critical-memory-corruption-vulnerability-impacting-multiple-systems\/\"  data-wpil-monitor-id=\"58945\">impact and high severity make it a critical<\/a> issue that demands immediate attention. Organizations and individuals who deal with image <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4992-stored-cross-site-scripting-vulnerability-in-3dexperience-service-process-engineer\/\"  data-wpil-monitor-id=\"57354\">processing and encoding systems must be aware of this vulnerability<\/a> to ensure the security and integrity of their systems and data.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-21470<br \/>\nSeverity: High (7.8 CVSS Score)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22040-race-condition-vulnerability-in-linux-kernel-resulting-in-potential-system-compromise\/\"  data-wpil-monitor-id=\"57887\">Potential system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-541519145\" 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>ImageProc | v1.0 to v3.5<br \/>\nPicEncoder | v2.1<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>This exploit takes advantage of a flaw in the way that the software handles image encoding. Specifically, the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48881-unauthorized-access-and-modification-vulnerability-in-valtimo-business-process-automation\/\"  data-wpil-monitor-id=\"57375\">vulnerability is triggered when the system is processing<\/a> image encoding tasks with a NULL configuration in the IOCTL parameter. An attacker, with local <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4433-improper-access-control-leads-to-privilege-escalation-in-devolutions-server\/\"  data-wpil-monitor-id=\"57340\">access and low privilege<\/a>, could send a crafted IOCTL call with a NULL configuration. This could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-45565-memory-corruption-vulnerability-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"58031\">lead to memory corruption<\/a>, and in worst-case scenarios, result in system compromise or data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-693922567\" 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&#8217;s a conceptual example of how the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-11739-sql-injection-vulnerability-in-case-erp\/\"  data-wpil-monitor-id=\"65456\">vulnerability might be exploited-in this case<\/a>, a crafted IOCTL call:<\/p>\n<pre><code class=\"\" data-line=\"\">#include &lt;stdio.h&gt;\n#include &lt;sys\/ioctl.h&gt;\nint main() {\nint fd = open(&quot;\/dev\/vulnerable_device&quot;, O_RDWR);\nif (fd &lt; 0) {\nperror(&quot;open&quot;);\nreturn -1;\n}\nchar *null_config = NULL;\nint ret = ioctl(fd, IOCTL_ENCODE_IMAGE, null_config);\nif (ret &lt; 0) {\nperror(&quot;ioctl&quot;);\nreturn -1;\n}\nreturn 0;\n}<\/code><\/pre>\n<p>In this example, the attacker opens the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-39490-php-remote-file-inclusion-vulnerability-in-mikado-themes-backpack-traveler\/\"  data-wpil-monitor-id=\"57268\">vulnerable device file<\/a> and then sends an IOCTL call to it with a NULL configuration, potentially triggering the memory corruption.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>To mitigate the risks associated with CVE-2025-21470, vendors are encouraged to apply the necessary patches as soon as they become available. In the meantime, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as temporary mitigation. These systems can be <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-0324-privilege-escalation-vulnerability-in-vapix-device-configuration-framework\/\"  data-wpil-monitor-id=\"58088\">configured to detect and block attempts to exploit this vulnerability<\/a>, thus providing an additional layer of security while a more permanent solution is being implemented.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity landscape is an ever-evolving field, where new vulnerabilities are discovered, and patches are released regularly. One such vulnerability, identified as CVE-2025-21470, has recently caught the attention of security professionals worldwide. This vulnerability is a memory corruption issue that occurs during image encoding when the configuration is NULL in IOCTL parameter. Its widespread [&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-51099","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\/51099","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=51099"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51099\/revisions"}],"predecessor-version":[{"id":58911,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51099\/revisions\/58911"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=51099"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=51099"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=51099"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=51099"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=51099"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=51099"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=51099"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=51099"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=51099"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}