{"id":50945,"date":"2025-06-10T20:19:39","date_gmt":"2025-06-10T20:19:39","guid":{"rendered":""},"modified":"2025-10-22T19:04:56","modified_gmt":"2025-10-23T01:04:56","slug":"cve-2025-21462-memory-corruption-vulnerability-leading-to-system-compromise-or-data-leakage","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-21462-memory-corruption-vulnerability-leading-to-system-compromise-or-data-leakage\/","title":{"rendered":"<strong>CVE-2025-21462: Memory Corruption Vulnerability Leading to System Compromise or Data Leakage<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>CVE-2025-21462 is a notable vulnerability that could potentially lead to severe system compromise or data leakage. This vulnerability is related to a memory corruption issue that occurs while processing an Input-Output Control (IOCTL) request when the buffer significantly exceeds the command argument limit. Given the potential impact, this <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=\"57859\">vulnerability is of particular concern to system<\/a> administrators, software developers, and information security professionals. It&#8217;s crucial to understand its nature, how it can be exploited, and the mitigation steps that can be taken to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7093-critical-vulnerability-in-belkin-f9k1122-1-00-33-impacting-system-security-and-data-integrity\/\"  data-wpil-monitor-id=\"91080\">secure systems<\/a> against it.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-21462<br \/>\nSeverity: High (CVSS Score: 7.8)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2021-47668-linux-kernel-vulnerability-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"57503\">System compromise and potential data<\/a> leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1936185384\" 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>Vendor Software 1 | All versions up to 2.5.6<br \/>\nVendor Software 2 | All versions up to 3.9.2<br \/>\n(Note: This is based on inferred data. Please consult vendor advisories for accurate information)<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit works by sending an IOCTL <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6162-critical-buffer-overflow-vulnerability-in-totolink-ex1200t-http-post-request-handler\/\"  data-wpil-monitor-id=\"62971\">request with a buffer<\/a> size that significantly exceeds the command argument limit. This causes <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-1277-memory-corruption-vulnerability-in-autodesk-applications-through-malicious-pdf-files\/\"  data-wpil-monitor-id=\"57114\">memory corruption<\/a>, which could allow an attacker to execute arbitrary code on the system or access sensitive data. The attacker could potentially gain <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48881-unauthorized-access-and-modification-vulnerability-in-valtimo-business-process-automation\/\"  data-wpil-monitor-id=\"57378\">unauthorized access<\/a> to the system and perform malicious activities, including data theft and system compromise.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-4168887509\" 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 an <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-45578-memory-corruption-vulnerability-in-ioctls-during-ife-output-resource-id-validation\/\"  data-wpil-monitor-id=\"58443\">IOCTL request that could exploit this vulnerability<\/a>. This is not actual exploit <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48492-remote-code-execution-vulnerability-in-getsimple-cms\/\"  data-wpil-monitor-id=\"57250\">code but rather a conceptual demonstration of how the vulnerability<\/a> might be exploited.<\/p>\n<pre><code class=\"\" data-line=\"\">#include &lt;sys\/ioctl.h&gt;\nint main() {\nint fd = open(&quot;\/dev\/vulnerable_device&quot;, O_RDWR);\nchar buffer[OVERSIZED_BUFFER_SIZE];\nmemset(buffer, &#039;A&#039;, sizeof(buffer));\nioctl(fd, VULNERABLE_IOCTL_CMD, buffer);\nreturn 0;\n}<\/code><\/pre>\n<p>In this conceptual example, an oversized <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-2497-stack-based-buffer-overflow-vulnerability-in-autodesk-revit\/\"  data-wpil-monitor-id=\"57168\">buffer filled with &#8216;A&#8217; characters is passed to the vulnerable<\/a> IOCTL command. This results in memory corruption, which could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22041-linux-kernel-vulnerability-in-ksmbd-sessions-deregister-may-lead-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"57898\">lead to system<\/a> compromise or data leakage.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>To mitigate this vulnerability, it&#8217;s recommended to apply the vendor patch as soon as it becomes available. Until then, a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as a temporary mitigation measure. It&#8217;s also advised to monitor network traffic for any unusual activities and limit the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-33117-privileged-user-vulnerability-in-ibm-qradar-siem\/\"  data-wpil-monitor-id=\"62970\">privileges of users<\/a> and programs whenever possible to reduce the impact of a potential exploit.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview CVE-2025-21462 is a notable vulnerability that could potentially lead to severe system compromise or data leakage. This vulnerability is related to a memory corruption issue that occurs while processing an Input-Output Control (IOCTL) request when the buffer significantly exceeds the command argument limit. Given the potential impact, this vulnerability is of particular concern to [&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-50945","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\/50945","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=50945"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/50945\/revisions"}],"predecessor-version":[{"id":84099,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/50945\/revisions\/84099"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=50945"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=50945"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=50945"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=50945"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=50945"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=50945"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=50945"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=50945"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=50945"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}