{"id":50627,"date":"2025-06-10T01:10:50","date_gmt":"2025-06-10T01:10:50","guid":{"rendered":""},"modified":"2025-09-07T11:38:25","modified_gmt":"2025-09-07T17:38:25","slug":"cve-2025-23103-buffer-overflow-vulnerability-in-samsung-exynos-mobile-processors","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-23103-buffer-overflow-vulnerability-in-samsung-exynos-mobile-processors\/","title":{"rendered":"<strong>CVE-2025-23103: Buffer Overflow Vulnerability in Samsung Exynos Mobile Processors<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In the ever-evolving landscape of cybersecurity, a new vulnerability has emerged that affects Samsung Mobile Processor Exynos 1480 and 2400. CVE-2025-23103, as it is known, involves an issue where the lack of a length check can lead to out-of-bounds writes. This particular <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-37838-use-after-free-vulnerability-in-linux-kernel-s-ssi-protocol-driver-due-to-race-condition\/\"  data-wpil-monitor-id=\"57731\">vulnerability is significant due<\/a> to its high severity score of 8.6 and the potential for system compromise or data leakage. It is crucial for cybersecurity professionals, Samsung users, and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5875-critical-buffer-overflow-vulnerability-in-tp-link-technologies-tl-ipc544ep-w4\/\"  data-wpil-monitor-id=\"60133\">technology enthusiasts to understand the nature of this vulnerability<\/a>, its potential impact, and how to mitigate it.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-23103<br \/>\nSeverity: High &#8211; CVSS v3.1 Score 8.6<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31263-critical-memory-handling-vulnerability-could-lead-to-system-compromise-or-data-leakage-in-macos-sequoia-15-4\/\"  data-wpil-monitor-id=\"57092\">System compromise<\/a>, potential data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-753656424\" 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>Samsung Mobile Processor Exynos 1480 | All <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48481-critical-vulnerability-in-freescout-prior-to-version-1-8-180\/\"  data-wpil-monitor-id=\"57206\">versions prior<\/a> to vendor patch<br \/>\nSamsung Mobile Processor Exynos 2400 | All <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48477-critical-vulnerability-in-freescout-prior-to-version-1-8-180\/\"  data-wpil-monitor-id=\"57826\">versions prior<\/a> to vendor patch<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-45997-exploiting-file-upload-vulnerability-in-web-based-pharmacy-product-management-system\/\"  data-wpil-monitor-id=\"56934\">vulnerability CVE-2025-23103 exploits<\/a> the lack of boundary checks in Samsung Exynos processors. This lack of checks allows a malicious actor to write data beyond the allocated memory buffer &#8211; a classic <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30295-heap-based-buffer-overflow-vulnerability-in-adobe-framemaker\/\"  data-wpil-monitor-id=\"56698\">buffer overflow<\/a>. In a buffer overflow, the extra data can corrupt data, crash the system, or allow the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-9639-remote-code-execution-vulnerabilities-in-aspect-nexus-and-matrix-series\/\"  data-wpil-monitor-id=\"56803\">execution of malicious code<\/a>. In this case, the vulnerability can potentially be exploited to compromise the system or leak <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48749-netwrix-directory-manager-s-sensitive-data-exposure-vulnerability\/\"  data-wpil-monitor-id=\"56720\">sensitive data<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1080522674\" 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>While the exact details of exploiting this vulnerability are complex and beyond the scope of this blog post, a conceptual example of a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-2497-stack-based-buffer-overflow-vulnerability-in-autodesk-revit\/\"  data-wpil-monitor-id=\"57165\">buffer overflow<\/a> attack would look like the following pseudo-code:<\/p>\n<pre><code class=\"\" data-line=\"\">char buffer[256]; \/\/ A buffer with a size of 256 bytes\nstrcpy(buffer, user_input); \/\/ Copy user input into the buffer<\/code><\/pre>\n<p>In this example, if the `user_input` is larger than the allocated buffer size (256 bytes), it will <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2020-36846-critical-buffer-overflow-vulnerability-in-brotli-compression-library\/\"  data-wpil-monitor-id=\"57244\">overflow the buffer<\/a> and overwrite adjacent memory. This is a simplified example, but in reality, the attacker would craft `user_input` to contain specific <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=\"57732\">data or instructions to manipulate the system<\/a> execution flow to their advantage.<br \/>\nIn the context of CVE-2025-23103, a similar principle applies. The malicious data could be delivered over the network to the Samsung Exynos processors, which lack adequate length checks, leading to out-of-bounds writes and potential <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-42977-path-handling-vulnerability-that-risks-data-leakage-and-system-compromise\/\"  data-wpil-monitor-id=\"56933\">system compromise or data leakage<\/a>.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>The best mitigation for this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49002-critical-vulnerability-in-dataease-bypassing-patch-for-cve-2025-32966\/\"  data-wpil-monitor-id=\"60134\">vulnerability is to apply the vendor patch<\/a> as soon as it is available. This patch will introduce the necessary length checks to prevent <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-1274-critical-out-of-bounds-write-vulnerability-in-autodesk-revit\/\"  data-wpil-monitor-id=\"57091\">out-of-bounds writes<\/a>. In the meantime, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as temporary mitigation to monitor traffic and block <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-7457-macos-authorization-model-exploit-leading-to-potential-mitm-attacks\/\"  data-wpil-monitor-id=\"80013\">potential exploitation<\/a> attempts.<br \/>\nRemember, the best <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=\"77075\">defense against any vulnerability<\/a> is a proactive approach to cybersecurity, including maintaining up-to-date systems, regular patching, and continuous monitoring.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In the ever-evolving landscape of cybersecurity, a new vulnerability has emerged that affects Samsung Mobile Processor Exynos 1480 and 2400. CVE-2025-23103, as it is known, involves an issue where the lack of a length check can lead to out-of-bounds writes. This particular vulnerability is significant due to its high severity score of 8.6 and [&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":[86],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-50627","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/50627","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=50627"}],"version-history":[{"count":13,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/50627\/revisions"}],"predecessor-version":[{"id":72437,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/50627\/revisions\/72437"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=50627"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=50627"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=50627"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=50627"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=50627"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=50627"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=50627"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=50627"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=50627"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}