{"id":74237,"date":"2025-09-11T20:48:06","date_gmt":"2025-09-11T20:48:06","guid":{"rendered":""},"modified":"2025-10-03T12:33:20","modified_gmt":"2025-10-03T18:33:20","slug":"cve-2025-48543-privilege-escalation-vulnerability-in-android-s-chrome-sandbox","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-48543-privilege-escalation-vulnerability-in-android-s-chrome-sandbox\/","title":{"rendered":"<strong>CVE-2025-48543: Privilege Escalation Vulnerability in Android&#8217;s Chrome Sandbox<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In the realm of cybersecurity, vulnerabilities are an inevitable occurrence. Among them, a recently discovered vulnerability, CVE-2025-48543, poses a significant threat to Android users globally. This security flaw is related to Android&#8217;s chrome sandbox, where there is a possibility of escaping the sandbox to attack the android system_server, leading to a potential <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24005-local-privilege-escalation-via-vulnerable-ssh-script\/\"  data-wpil-monitor-id=\"81927\">local escalation of privilege<\/a>. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24775-high-severity-unrestricted-file-upload-vulnerability-in-made-i-t-forms\/\"  data-wpil-monitor-id=\"83073\">severity of this vulnerability<\/a> is underscored by the fact that user interaction is not necessary for its exploitation, making it a silent but deadly threat to system integrity and data privacy.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-48543<br \/>\nSeverity: High (8.8 CVSS Score)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Not required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2022-45134-critical-vulnerability-in-mahara-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"82959\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1009829764\" 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>Android | All versions up to the latest at the time of discovery<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-36854-critical-use-after-free-vulnerability-in-asp-net-leads-to-remote-code-execution\/\"  data-wpil-monitor-id=\"87776\">vulnerability is a classic use-after-free<\/a> type. In multiple locations within the Android&#8217;s chrome sandbox, there is a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48581-critical-security-flaw-allowing-local-privilege-escalation-in-mainline-installations\/\"  data-wpil-monitor-id=\"87109\">flaw that allows<\/a> for sandbox escape. This flaw can be exploited by an attacker to attack the android system_server. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2022-38693-severe-memory-buffer-overflow-vulnerability-in-fdl1\/\"  data-wpil-monitor-id=\"84531\">vulnerability occurs due to the mishandling of memory<\/a> (use after free), which means that the system continues to use memory after it has been freed. This could allow an attacker to manipulate the system by placing malicious code in these memory locations, leading to local <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49457-unauthenticated-escalation-of-privilege-in-zoom\/\"  data-wpil-monitor-id=\"81959\">escalation of privilege<\/a> and potentially compromising the system or causing data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-4288731585\" 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 is a conceptual example of how this vulnerability might be exploited. This is a simplified example and does not represent a real-world exploit.<\/p>\n<pre><code class=\"\" data-line=\"\">public class Exploit {\npublic static void main(String[] args) {\n\/\/ Create a sandboxed process\nProcess sandboxedProcess = new Process(&quot;chromeSandbox&quot;);\n\/\/ Wait for the sandboxed process to free some memory\nwaitForMemoryFree(sandboxedProcess);\n\/\/ Inject malicious code in the freed memory\nsandboxedProcess.writeToMemory(&quot;malicious_code&quot;);\n\/\/ Trigger the sandboxed process to use the freed memory\nsandboxedProcess.triggerUseAfterFree();\n\/\/ Escalate privileges and attack the system server\nattackSystemServer();\n}\n}<\/code><\/pre>\n<p><strong>Mitigation and Prevention<\/strong><\/p>\n<p>Users are advised to apply the vendor patch once it is available. In the meantime, using Web Application Firewall (WAF) or Intrusion Detection Systems (IDS) can serve as temporary mitigation. Regular software updates, careful monitoring of system activity, and following best practices for <a href=\"https:\/\/www.ameeba.com\/blog\/introducing-the-ameeba-cybersecurity-group-chat\/\"  data-wpil-monitor-id=\"88533\">cybersecurity<\/a> can also help prevent the exploitation of such vulnerabilities.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In the realm of cybersecurity, vulnerabilities are an inevitable occurrence. Among them, a recently discovered vulnerability, CVE-2025-48543, poses a significant threat to Android users globally. This security flaw is related to Android&#8217;s chrome sandbox, where there is a possibility of escaping the sandbox to attack the android system_server, leading to a potential local escalation [&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":[91],"product":[],"attack_vector":[76],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-74237","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-google","attack_vector-privilege-escalation"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/74237","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=74237"}],"version-history":[{"count":8,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/74237\/revisions"}],"predecessor-version":[{"id":81339,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/74237\/revisions\/81339"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=74237"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=74237"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=74237"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=74237"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=74237"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=74237"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=74237"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=74237"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=74237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}