{"id":41611,"date":"2025-05-21T10:56:21","date_gmt":"2025-05-21T10:56:21","guid":{"rendered":""},"modified":"2025-08-09T12:58:05","modified_gmt":"2025-08-09T18:58:05","slug":"cve-2025-27891-samsung-mobile-and-wearable-processors-vulnerability-leads-to-potential-system-compromise","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-27891-samsung-mobile-and-wearable-processors-vulnerability-leads-to-potential-system-compromise\/","title":{"rendered":"<strong>CVE-2025-27891: Samsung Mobile and Wearable Processors Vulnerability Leads to Potential System Compromise<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A significant security vulnerability, CVE-2025-27891, has been discovered affecting various Samsung Mobile Processor, Wearable Processor, and Modem models. The vulnerability is a result of insufficient length checks, which could potentially lead to out-of-bounds reads via malformed NAS packets. This vulnerability is of great concern due to the widespread use of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27523-xxe-vulnerability-in-hitachi-jp1-it-desktop-management-2-smart-device-manager-on-windows\/\"  data-wpil-monitor-id=\"50127\">Samsung processors in many popular mobile and wearable<\/a> devices. A successful exploit could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-31234-input-sanitization-flaw-leading-to-system-termination-and-kernel-memory-corruption\/\"  data-wpil-monitor-id=\"47859\">lead to system<\/a> compromise or data leakage, posing significant risks for user privacy and security.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-27891<br \/>\nSeverity: Critical (CVSS Score: 9.1)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-34333-critical-vulnerability-in-ami-s-spx-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"47584\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2359069430\" 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><a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23099-critical-vulnerability-in-samsung-mobile-processor-exynos-1480-and-2400\/\"  data-wpil-monitor-id=\"58373\">Samsung Mobile Processor Exynos<\/a> | 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400<br \/>\n<a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23097-samsung-mobile-processor-exynos-1380-out-of-bounds-write-vulnerability\/\"  data-wpil-monitor-id=\"58751\">Samsung Wearable Processor Exynos<\/a> | W920, W930, W1000<br \/>\n<a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23107-severe-out-of-bounds-write-vulnerability-in-samsung-mobile-processor-exynos-1480-and-2400\/\"  data-wpil-monitor-id=\"58754\">Samsung Modem Exynos<\/a> | 5123, 5300, 5400<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit takes advantage of the lack of length check in the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23105-use-after-free-vulnerability-in-samsung-mobile-processors-exynos-2200-2400-and-1480-leading-to-privilege-escalation\/\"  data-wpil-monitor-id=\"71087\">Exynos processors<\/a>. By sending malformed Network Access System (NAS) packets, an attacker can provoke <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-37447-critical-out-of-bounds-read-vulnerabilities-in-gtkwave-3-3-115\/\"  data-wpil-monitor-id=\"46799\">out-of-bounds reads<\/a>. This happens as the processor&#8217;s function, which handles these packets, does not appropriately verify their length. As a result, an attacker can manipulate the packets to cause the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-3090-unauthenticated-remote-attack-leading-to-potential-data-leakage-and-system-compromise\/\"  data-wpil-monitor-id=\"71088\">processor<\/a> to read data beyond its intended boundary. This could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-34332-critical-vulnerability-in-ami-s-spx-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"47550\">potentially lead to system<\/a> compromise or data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-4116156688\" 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 an attacker might send a malformed NAS <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-53020-information-disclosure-vulnerability-in-rtp-packet-decoding\/\"  data-wpil-monitor-id=\"58484\">packet to exploit this vulnerability<\/a>:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/NAS_packet HTTP\/1.1\nHost: target.example.com\nContent-Length: [Insert an overly large value]\n{ &quot;malicious_payload&quot;: &quot;...&quot; }<\/code><\/pre>\n<p>In the above example, the `Content-Length` header is set to an overly large value, and the request body contains a malicious payload. This malformed NAS packet could trigger an <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-20101-an-out-of-bounds-read-vulnerability-in-intel-r-graphics-drivers\/\"  data-wpil-monitor-id=\"50149\">out-of-bounds read<\/a>, exploiting the vulnerability.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p><a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-4632-critical-vulnerability-in-samsung-magicinfo-server\/\"  data-wpil-monitor-id=\"48165\">Samsung has released a patch to address this vulnerability<\/a>. All users of the affected products are strongly advised to apply this patch as soon as possible. In the interim, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5485-a-critical-vulnerability-pertaining-to-user-name-enumeration-in-web-management-interfaces\/\"  data-wpil-monitor-id=\"71089\">users can use Web<\/a> Application Firewalls (WAF) or Intrusion Detection Systems (IDS) to provide temporary mitigation against potential exploits.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A significant security vulnerability, CVE-2025-27891, has been discovered affecting various Samsung Mobile Processor, Wearable Processor, and Modem models. The vulnerability is a result of insufficient length checks, which could potentially lead to out-of-bounds reads via malformed NAS packets. This vulnerability is of great concern due to the widespread use of Samsung processors in many [&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":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-41611","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/41611","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=41611"}],"version-history":[{"count":12,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/41611\/revisions"}],"predecessor-version":[{"id":63621,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/41611\/revisions\/63621"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=41611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=41611"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=41611"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=41611"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=41611"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=41611"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=41611"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=41611"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=41611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}