{"id":74693,"date":"2025-09-14T05:07:27","date_gmt":"2025-09-14T05:07:27","guid":{"rendered":""},"modified":"2025-09-27T18:11:38","modified_gmt":"2025-09-28T00:11:38","slug":"cve-2025-7424-critical-memory-corruption-vulnerability-in-libxslt-library","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-7424-critical-memory-corruption-vulnerability-in-libxslt-library\/","title":{"rendered":"<strong>CVE-2025-7424: Critical Memory Corruption Vulnerability in libxslt Library<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The Common Vulnerabilities and Exposures (CVE) system has recently identified a significant flaw in the libxslt library with the designation CVE-2025-7424. This vulnerability is of critical importance due to the potential for system compromise or data leakage, affecting any application or system that uses the libxslt library to perform XML transformations. The flaw arises from a type confusion issue during XML transformations, which can lead to application crashes, memory corruption, and, in some cases, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20239-denial-of-service-vulnerability-in-cisco-ios-ios-xe-asa-and-ftd-software\/\"  data-wpil-monitor-id=\"82825\">denial of service<\/a> or unexpected behavior.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-7424<br \/>\nSeverity: High (7.8 CVSS Score)<br \/>\nAttack Vector: Local network<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: No<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22404-potential-system-compromise-due-to-use-after-free-vulnerability\/\"  data-wpil-monitor-id=\"85648\">System compromise<\/a>, data leakage, denial of service, or unexpected behavior.<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1320562854\" 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>libxslt | All <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-46715-kernel-pointer-vulnerability-in-sandboxie-versions-prior-to-1-15-12\/\"  data-wpil-monitor-id=\"82761\">versions prior<\/a> to patch<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54594-critical-vulnerability-in-react-native-bottom-tabs-library-allows-for-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"82249\">vulnerability arises from the way the libxslt library<\/a> handles memory during XML transformations. Specifically, it uses the same memory field, &#8220;psvi&#8221;, for both the stylesheet and input data. This can cause type confusion, which can <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7775-critical-memory-overflow-vulnerability-in-netscaler-adc-and-gateway-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"83717\">lead to memory<\/a> corruption or a crash of the application using the library. If an attacker can send maliciously crafted data to the system, they can exploit this flaw to cause denial of service or, in some cases, even gain <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7051-unauthorized-access-and-manipulation-of-syslog-configuration-in-n-central\/\"  data-wpil-monitor-id=\"84619\">unauthorized access<\/a> to the system.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3387734119\" 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-2024-58259-denial-of-service-vulnerability-in-rancher-manager-due-to-unrestricted-payload-size\/\"  data-wpil-monitor-id=\"85818\">vulnerability might be exploited using a malicious XML payload:<\/a><\/p>\n<pre><code class=\"\" data-line=\"\">POST \/processxml HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/xml\n&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;\n&lt;xsl:stylesheet version=&quot;1.0&quot; xmlns:xsl=&quot;http:\/\/www.w3.org\/1999\/XSL\/Transform&quot;&gt;\n&lt;xsl:template match=&quot;\/&quot;&gt;\n&lt;xsl:value-of select=&quot;exploit(&#039;psvi&#039;)&quot;\/&gt;\n&lt;\/xsl:template&gt;\n&lt;\/xsl:stylesheet&gt;<\/code><\/pre>\n<p>In this example, the attacker is sending a malicious XML payload designed to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9184-exploitable-memory-safety-bugs-in-firefox-and-thunderbird\/\"  data-wpil-monitor-id=\"84642\">exploit the &#8220;psvi&#8221; memory<\/a> field, potentially causing the application to crash, corrupting memory, or even allowing the attacker to gain unauthorized access to the system.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The Common Vulnerabilities and Exposures (CVE) system has recently identified a significant flaw in the libxslt library with the designation CVE-2025-7424. This vulnerability is of critical importance due to the potential for system compromise or data leakage, affecting any application or system that uses the libxslt library to perform XML transformations. The flaw arises [&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":[87],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-74693","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-dos"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/74693","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=74693"}],"version-history":[{"count":8,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/74693\/revisions"}],"predecessor-version":[{"id":78617,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/74693\/revisions\/78617"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=74693"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=74693"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=74693"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=74693"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=74693"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=74693"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=74693"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=74693"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=74693"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}