{"id":64091,"date":"2025-08-16T07:30:51","date_gmt":"2025-08-16T07:30:51","guid":{"rendered":""},"modified":"2025-09-10T15:48:35","modified_gmt":"2025-09-10T21:48:35","slug":"cve-2025-46414-unlimited-pin-attempts-vulnerability-in-api","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-46414-unlimited-pin-attempts-vulnerability-in-api\/","title":{"rendered":"<strong>CVE-2025-46414: Unlimited PIN Attempts Vulnerability in API<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A high-severity vulnerability, codenamed CVE-2025-46414, has been identified in a broad range of products that do not limit the number of attempts for inputting the correct PIN for a registered product. An attacker possessing a valid device serial number could exploit this vulnerability to gain unauthorized access using brute-force methods. The API provides clear feedback when the correct PIN is entered, further facilitating the exploit. If successfully exploited, this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-33075-a-critical-windows-installer-vulnerability-that-leads-to-privilege-elevation\/\"  data-wpil-monitor-id=\"72421\">vulnerability could lead<\/a> to system compromise or data leakage. Thus, it poses a significant <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=\"76980\">threat to the security<\/a> and privacy of users and enterprises that rely on the affected products.<br \/>\nThe <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48799-privilege-escalation-vulnerability-in-windows-update-service\/\"  data-wpil-monitor-id=\"77838\">vulnerability was patched in a server-side update<\/a> on April 6, 2025. However, systems that have not applied this patch remain at risk. This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24000-authentication-bypass-vulnerability-in-wpexperts-post-smtp-plugin\/\"  data-wpil-monitor-id=\"78982\">post aims to provide an in-depth analysis of this vulnerability<\/a> and guidance on mitigation measures.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-46414<br \/>\nSeverity: High (8.1 CVSS Score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-27050-memory-corruption-vulnerability-leading-to-potential-system-compromise-and-data-leakage\/\"  data-wpil-monitor-id=\"74934\">Potential system compromise or data<\/a> leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1340208004\" 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>The details of the affected products and their versions are not provided. However, the <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=\"73660\">vulnerability potentially<\/a> affects any product that doesn&#8217;t limit PIN entry attempts and provides clear feedback on correct PIN entry through its API.<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit leverages the lack of limits on PIN entry attempts in the affected products. An attacker possessing a valid device serial number can initiate a brute-force attack, systematically attempting all possible PIN combinations until the correct PIN is identified. The API exacerbates the situation by providing clear feedback when the correct PIN is entered, enabling the attacker to know when they have successfully cracked the PIN.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p>\n<p>Below is a conceptual example of how a brute-force attack exploiting this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-9408-server-side-request-forgery-attack-in-eclipse-glassfish\/\"  data-wpil-monitor-id=\"77372\">vulnerability<\/a> might be implemented using a simple HTTP request:<\/p><div id=\"ameeb-1250041976\" 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<pre><code class=\"\" data-line=\"\">POST \/api\/device\/authenticate HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;device_serial&quot;: &quot;VALID_DEVICE_SERIAL&quot;, &quot;pin&quot;: &quot;0000&quot; }\n\/\/ The attacker would repeat this request, incrementing the &quot;pin&quot; value each time, until a successful response is received.<\/code><\/pre>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>The primary mitigation measure for this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-51991-server-side-template-injection-vulnerability-in-xwiki-s-administration-interface\/\"  data-wpil-monitor-id=\"81399\">vulnerability is to apply the vendor&#8217;s server-side<\/a> patch released on April 6, 2025. This patch addresses the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8342-authentication-bypass-vulnerability-in-woocommerce-otp-login-with-phone-number-otp-verification-plugin\/\"  data-wpil-monitor-id=\"76687\">vulnerability by implementing a limit on the number<\/a> of PIN entry attempts. Additionally, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation by blocking or alerting on suspicious behavior that could indicate a brute-force attack.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A high-severity vulnerability, codenamed CVE-2025-46414, has been identified in a broad range of products that do not limit the number of attempts for inputting the correct PIN for a registered product. An attacker possessing a valid device serial number could exploit this vulnerability to gain unauthorized access using brute-force methods. The API provides clear [&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-64091","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\/64091","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=64091"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64091\/revisions"}],"predecessor-version":[{"id":73851,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64091\/revisions\/73851"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=64091"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=64091"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=64091"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=64091"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=64091"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=64091"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=64091"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=64091"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=64091"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}