{"id":64087,"date":"2025-08-16T03:29:33","date_gmt":"2025-08-16T03:29:33","guid":{"rendered":""},"modified":"2025-09-27T07:38:56","modified_gmt":"2025-09-27T13:38:56","slug":"cve-2025-25278-local-arbitrary-code-execution-in-openharmony-v5-0-3-and-prior-versions","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-25278-local-arbitrary-code-execution-in-openharmony-v5-0-3-and-prior-versions\/","title":{"rendered":"<strong>CVE-2025-25278: Local Arbitrary Code Execution in OpenHarmony v5.0.3 and Prior Versions<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The Common Vulnerabilities and Exposures (CVE) system has recently identified a significant vulnerability, designated as CVE-2025-25278, that affects OpenHarmony v5.0.3 and all prior versions. This vulnerability presents a serious threat as it allows a local attacker to execute arbitrary code in tcb via a race condition, potentially leading to system compromise or significant data leakage. This blog <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24000-authentication-bypass-vulnerability-in-wpexperts-post-smtp-plugin\/\"  data-wpil-monitor-id=\"79003\">post aims to provide a comprehensive understanding of the vulnerability<\/a>, its potential impacts, and guidance on how to mitigate its risks.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-25278<br \/>\nSeverity: High (8.4\/10 on CVSS Severity Score)<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=\"75869\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1460732762\" 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>OpenHarmony | v5.0.3 and <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=\"77881\">prior versions<\/a><\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27128-arbitrary-code-execution-vulnerability-in-openharmony-v5-0-3\/\"  data-wpil-monitor-id=\"82191\">vulnerability lies in the tcb of OpenHarmony<\/a>. Tcb (thread control block) is a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6573-critical-kernel-software-vulnerability-leading-to-potential-data-leakage\/\"  data-wpil-monitor-id=\"80173\">data structure in OS kernel<\/a> which holds thread-specific data needed to manage the thread. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43275-critical-race-condition-vulnerability-in-macos\/\"  data-wpil-monitor-id=\"71671\">vulnerability arises due to a race condition<\/a>, which is a type of flaw that occurs when the behavior of a software system depends on the sequence or timing of other uncontrollable events.<br \/>\nIn this case, the race condition can be manipulated by a local attacker to execute <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30327-integer-overflow-vulnerability-in-incopy-leading-to-potential-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"73576\">arbitrary code<\/a>. This means that an attacker with <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-53499-critical-unauthorized-access-vulnerability-in-wikimedia-foundation-mediawiki-abusefilter-extension\/\"  data-wpil-monitor-id=\"72860\">access to the system can exploit this vulnerability<\/a> to potentially take control of the system or cause data leakage, creating a severe security risk.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2682260151\" 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>The following is a conceptual example of how the vulnerability might be exploited. In a real-world scenario, the actual malicious payload would be specifically crafted by an attacker to exploit the target system:<\/p>\n<pre><code class=\"\" data-line=\"\">$ .\/exploit_program --tcb_race_condition --execute_arbitrary_code<\/code><\/pre>\n<p>In this example, `exploit_program` is a hypothetical utility an attacker might use to exploit the race condition in tcb and execute <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32451-memory-corruption-vulnerability-in-foxit-reader-leading-to-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"74412\">arbitrary code<\/a>. Note that this is a simplified representation and actual exploitation would involve more sophisticated techniques and tools.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>The primary mitigation for this vulnerability is to apply the vendor patch. OpenHarmony has been notified about the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-35115-critical-system-package-download-vulnerability-in-agiloft-release-28\/\"  data-wpil-monitor-id=\"85348\">vulnerability and they are likely to release<\/a> a patch to address it. All users running a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43588-out-of-bounds-write-vulnerability-in-substance3d-sampler-versions-5-0-and-earlier\/\"  data-wpil-monitor-id=\"73522\">vulnerable version<\/a> of OpenHarmony should apply this patch as soon as it becomes available.<br \/>\nIn the interim, or for those unable to apply the patch immediately, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as temporary mitigation. These systems can help <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20217-denial-of-service-vulnerability-in-snort-3-detection-engine-of-cisco-secure-firewall-threat-defense-software\/\"  data-wpil-monitor-id=\"77145\">detect and block attempts to exploit this vulnerability<\/a>. However, they are not a complete solution and should be used in conjunction with the vendor patch for optimal protection.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The Common Vulnerabilities and Exposures (CVE) system has recently identified a significant vulnerability, designated as CVE-2025-25278, that affects OpenHarmony v5.0.3 and all prior versions. This vulnerability presents a serious threat as it allows a local attacker to execute arbitrary code in tcb via a race condition, potentially leading to system compromise or significant data [&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":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-64087","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-linux","product-linux-kernel","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64087","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=64087"}],"version-history":[{"count":12,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64087\/revisions"}],"predecessor-version":[{"id":78141,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64087\/revisions\/78141"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=64087"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=64087"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=64087"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=64087"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=64087"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=64087"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=64087"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=64087"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=64087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}