{"id":51241,"date":"2025-06-13T16:46:19","date_gmt":"2025-06-13T16:46:19","guid":{"rendered":""},"modified":"2025-09-10T23:56:00","modified_gmt":"2025-09-11T05:56:00","slug":"cve-2025-41646-critical-authentication-bypass-vulnerability-in-affected-software-packages","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-41646-critical-authentication-bypass-vulnerability-in-affected-software-packages\/","title":{"rendered":"<strong>CVE-2025-41646: Critical Authentication Bypass Vulnerability in Affected Software Packages<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>CVE-2025-41646 is a critical vulnerability, which allows an unauthorized remote attacker to bypass the authentication of the affected software package by exploiting an incorrect type conversion. This vulnerability can result in a full compromise of the device, leading to potential system compromise or data leakage. Given the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-37093-severe-authentication-bypass-vulnerability-in-hpe-storeonce-software\/\"  data-wpil-monitor-id=\"57943\">severity of this vulnerability<\/a>, it is of utmost importance for organizations running affected software packages to understand the risks and take immediate steps to mitigate.<br \/>\nThe <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-45567-severe-memory-corruption-vulnerability-during-jpeg-encoding\/\"  data-wpil-monitor-id=\"58242\">vulnerability has a CVSS Severity<\/a> Score of 9.8, which makes it a top priority for cybersecurity professionals and system administrators. The high score reflects the ease with which an attacker can exploit this <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=\"57795\">vulnerability and the potential<\/a> damage it could cause.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-41646<br \/>\nSeverity: Critical, CVSS score 9.8<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: Full <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-45565-memory-corruption-vulnerability-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"58243\">compromise of the system<\/a>, potential data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2787224040\" 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>Software Package A | Versions < 3.0.0\nSoftware Package B | All versions\n\n<strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit takes advantage of an incorrect <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-53733-microsoft-office-word-numeric-type-conversion-vulnerability\/\"  data-wpil-monitor-id=\"81625\">type conversion<\/a> in the authentication module of the affected software packages. By sending specially crafted data packets, an attacker can trick the system into <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23375-incorrect-use-of-privileged-apis-in-dell-powerprotect-data-manager-reporting\/\"  data-wpil-monitor-id=\"57794\">incorrectly validating the data<\/a> type. This in turn, allows the attacker to bypass the authentication process, gaining <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48881-unauthorized-access-and-modification-vulnerability-in-valtimo-business-process-automation\/\"  data-wpil-monitor-id=\"57395\">unauthorized access<\/a> to the system. Once inside, the attacker has full <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-41659-codesys-control-runtime-system-pki-folder-vulnerability\/\"  data-wpil-monitor-id=\"73950\">control over the system<\/a> and can perform a range of malicious activities, including data theft, data manipulation, or further propagation of malware.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p>\n<p>Here is a conceptual example of how the vulnerability might be exploited. This example demonstrates the type of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32105-buffer-overflow-vulnerability-in-sangoma-img2020-http-server-leading-to-remote-code-execution\/\"  data-wpil-monitor-id=\"58558\">HTTP request an attacker might send to exploit the vulnerability<\/a>:<\/p><div id=\"ameeb-2740132917\" 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 \/login HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ &quot;username&quot;: &quot;admin&quot;, &quot;password&quot;: {&quot;$type&quot;: &quot;string&quot;, &quot;$value&quot;: &quot;any_value&quot;} }<\/code><\/pre>\n<p>In the code above, the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49151-unauthenticated-attackers-can-forge-json-web-tokens-in-microsens-nmp-web\/\"  data-wpil-monitor-id=\"64559\">attacker is attempting to login by sending a JSON<\/a> payload where the password is an object instead of a string. The incorrect type conversion <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-46584-improper-authentication-logic-vulnerability-in-file-system-module\/\"  data-wpil-monitor-id=\"57962\">vulnerability could interpret this as a successful authentication<\/a>, granting the attacker access.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>The best way to mitigate 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=\"58897\">vulnerability is by applying the vendor-provided patch<\/a> for the affected software packages. If a patch is not yet available or cannot be applied immediately, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation by monitoring and blocking suspicious traffic.<br \/>\nIn addition, it is recommended to regularly update all software packages and monitor for any unusual system behavior or <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-13967-unauthorized-access-to-configuration-web-page-in-eibport-v3-knx-and-gsm\/\"  data-wpil-monitor-id=\"59344\">unauthorized access<\/a> attempts.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview CVE-2025-41646 is a critical vulnerability, which allows an unauthorized remote attacker to bypass the authentication of the affected software package by exploiting an incorrect type conversion. This vulnerability can result in a full compromise of the device, leading to potential system compromise or data leakage. Given the severity of this vulnerability, it is of [&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":[75],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-51241","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-authentication-bypass"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51241","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=51241"}],"version-history":[{"count":11,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51241\/revisions"}],"predecessor-version":[{"id":74068,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51241\/revisions\/74068"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=51241"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=51241"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=51241"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=51241"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=51241"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=51241"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=51241"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=51241"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=51241"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}