{"id":64151,"date":"2025-08-18T19:49:56","date_gmt":"2025-08-18T19:49:56","guid":{"rendered":""},"modified":"2025-10-20T15:23:24","modified_gmt":"2025-10-20T21:23:24","slug":"cve-2025-49675-kernel-streaming-wow-thunk-service-driver-use-after-free-vulnerability","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-49675-kernel-streaming-wow-thunk-service-driver-use-after-free-vulnerability\/","title":{"rendered":"<strong>CVE-2025-49675: Kernel Streaming WOW Thunk Service Driver Use-After-Free Vulnerability<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The growing sophistication of cyber threats requires constant vigilance and thorough knowledge of the vulnerabilities that malicious actors may exploit. One such vulnerability, CVE-2025-49675, is a significant security risk that affects the Kernel Streaming WOW Thunk Service Driver. An attacker who successfully exploits this vulnerability could elevate privileges locally, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49691-heap-based-buffer-overflow-in-windows-media-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"72169\">potentially leading to a complete system<\/a> compromise or data leakage.<br \/>\nThis vulnerability matters because it allows an attacker to bypass normal security measures and gain <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-53495-unauthorized-access-data-leakage-in-wikimedia-foundation-mediawiki-abusefilter-extension\/\"  data-wpil-monitor-id=\"72569\">unauthorized access to sensitive data<\/a>. As the severity score of 7.8 indicates, this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8037-high-risk-cookie-vulnerability-in-firefox-and-thunderbird\/\"  data-wpil-monitor-id=\"71854\">vulnerability is a high-risk<\/a> issue that needs immediate attention and remediation.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-49675<br \/>\nSeverity: High (CVSS: 7.8)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-40741-stack-based-overflow-vulnerability-in-solid-edge-se2025-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"75874\">Potential system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-459902471\" 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>Kernel Streaming WOW Thunk Service Driver | All <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-55010-arbitrary-php-object-instantiation-in-kanboard-prior-to-version-1-2-47\/\"  data-wpil-monitor-id=\"77929\">versions prior<\/a> to patch<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The CVE-2025-49675 vulnerability is a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47168-use-after-free-vulnerability-in-microsoft-office-word-allowing-unauthorized-code-execution\/\"  data-wpil-monitor-id=\"73149\">use-after-free<\/a> vulnerability. It occurs when the Kernel Streaming WOW Thunk Service Driver, a software component responsible for handling data streams in the kernel, fails to correctly <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-55158-critical-memory-management-vulnerability-in-vim-text-editor\/\"  data-wpil-monitor-id=\"78877\">manage memory<\/a> usage.<br \/>\nAn attacker can exploit this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43193-critical-memory-handling-vulnerability-in-macos\/\"  data-wpil-monitor-id=\"71855\">vulnerability by causing the affected component to reference memory<\/a> that has been freed or deleted. This can lead to undefined behavior, including program crashes, incorrect execution, and, in this case, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6754-privilege-escalation-vulnerability-in-seo-metrics-plugin-for-wordpress\/\"  data-wpil-monitor-id=\"72751\">privilege escalation<\/a> &#8211; allowing the attacker to perform actions with higher privileges than they should have.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2353644345\" 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>In a conceptual sense, the exploitation could proceed as follows:<\/p>\n<pre><code class=\"\" data-line=\"\"># The attacker triggers the use-after-free vulnerability\necho &quot;Triggering use-after-free vulnerability...&quot;\n.\/trigger_uaf\n# The attacker uses the vulnerability to elevate their privileges\necho &quot;Elevating privileges...&quot;\n.\/elevate_privileges\n# The attacker now has higher privileges and can perform actions they normally wouldn&#039;t be able to\necho &quot;Running command with elevated privileges...&quot;\n.\/run_command_with_elevated_privileges<\/code><\/pre>\n<p>Please note that this is a conceptual example and does not represent actual exploit code.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>To mitigate this vulnerability, apply the vendor-provided patch as soon as possible. If the patch cannot be applied immediately, consider using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. However, these measures will not fully <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43728-protection-mechanism-failure-vulnerability-in-dell-thinos\/\"  data-wpil-monitor-id=\"90290\">protect against the vulnerability<\/a>, so applying the patch remains the most effective solution.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The growing sophistication of cyber threats requires constant vigilance and thorough knowledge of the vulnerabilities that malicious actors may exploit. One such vulnerability, CVE-2025-49675, is a significant security risk that affects the Kernel Streaming WOW Thunk Service Driver. An attacker who successfully exploits this vulnerability could elevate privileges locally, potentially leading to a complete [&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":[88],"product":[95],"attack_vector":[76],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-64151","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-linux","product-linux-kernel","attack_vector-privilege-escalation"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64151","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=64151"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64151\/revisions"}],"predecessor-version":[{"id":83230,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64151\/revisions\/83230"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=64151"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=64151"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=64151"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=64151"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=64151"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=64151"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=64151"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=64151"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=64151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}