{"id":79377,"date":"2025-09-30T14:02:01","date_gmt":"2025-09-30T14:02:01","guid":{"rendered":""},"modified":"2025-10-02T18:15:03","modified_gmt":"2025-10-03T00:15:03","slug":"cve-2025-27034-critical-memory-corruption-vulnerability-in-plmn-selection-process","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-27034-critical-memory-corruption-vulnerability-in-plmn-selection-process\/","title":{"rendered":"<strong>CVE-2025-27034: Critical Memory Corruption Vulnerability in PLMN Selection Process<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The CVE-2025-27034 is a critical cybersecurity vulnerability that pertains to the process of selecting the Public Land Mobile Network (PLMN) from a System Operator (SOR) failed list. This vulnerability exposes systems to potential memory corruption, leading to severe consequences such as system compromise and data leakage. It is of particular concern to organizations and individuals utilizing software systems that rely on the PLMN selection process as it poses a significant threat to their <a href=\"https:\/\/www.ameeba.com\/blog\/ameeba-announces-cybersecurity-internship-program\/\"  data-wpil-monitor-id=\"87716\">cybersecurity<\/a> infrastructure.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-27034<br \/>\nSeverity: Critical (CVSS: 9.8)<br \/>\nAttack Vector: Network-based<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49401-critical-deserialization-of-untrusted-data-vulnerability-in-expresstech-systems-quiz-and-survey-master\/\"  data-wpil-monitor-id=\"87152\">System compromise and data<\/a> leakage upon successful exploitation.<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1526552677\" 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>[Insert product] | All versions prior to [Insert fixed version]<br \/>\n[Insert product] | All versions prior to [Insert fixed version]<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit occurs when a system attempts to select a PLMN from an SOR failed list. Due to a flaw in the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-57151-cross-site-scripting-vulnerability-in-phpgurukul-complaint-management-system-2-0\/\"  data-wpil-monitor-id=\"87783\">system&#8217;s memory management<\/a>, this process could trigger a corruption of memory. An attacker could exploit this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-58833-cross-site-request-forgery-vulnerability-in-invelity-mygls-connect\/\"  data-wpil-monitor-id=\"86985\">vulnerability by sending specially crafted network requests<\/a>, causing the system to select from the corrupted SOR failed list. This could then provide the attacker with <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7040-unauthorized-modification-of-data-in-cloud-saml-sso-plugin-for-wordpress\/\"  data-wpil-monitor-id=\"87722\">unauthorized access to sensitive data<\/a> or even full control over the system.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-267941209\" 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>A <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-26210-deepseek-xss-vulnerability-allows-potential-system-compromise\/\"  data-wpil-monitor-id=\"86680\">potential scenario of exploiting this vulnerability<\/a> could be by sending a malicious payload through a network request. Here&#8217;s a conceptual example of such a request:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/selectPLMN HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;SOR_failed_list&quot;: &quot;malicious_memory_corruption_code_here&quot; }<\/code><\/pre>\n<p>By sending this request, an attacker could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-56265-arbitrary-file-upload-vulnerability-in-n8n-s-chat-trigger-component\/\"  data-wpil-monitor-id=\"87946\">trigger the vulnerability<\/a>, corrupt the memory, and gain unauthorized access.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>The recommended mitigation for this vulnerability is to apply a patch from the vendor as soon as it becomes available. In the meantime, organizations can use a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as temporary mitigation. It is crucial to keep these systems up to date and monitor them regularly to detect any suspicious activity.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The CVE-2025-27034 is a critical cybersecurity vulnerability that pertains to the process of selecting the Public Land Mobile Network (PLMN) from a System Operator (SOR) failed list. This vulnerability exposes systems to potential memory corruption, leading to severe consequences such as system compromise and data leakage. It is of particular concern to organizations 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":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-79377","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\/79377","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=79377"}],"version-history":[{"count":7,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/79377\/revisions"}],"predecessor-version":[{"id":80758,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/79377\/revisions\/80758"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=79377"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=79377"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=79377"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=79377"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=79377"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=79377"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=79377"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=79377"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=79377"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}