{"id":81724,"date":"2025-10-04T21:29:50","date_gmt":"2025-10-04T21:29:50","guid":{"rendered":""},"modified":"2025-10-21T14:51:56","modified_gmt":"2025-10-21T20:51:56","slug":"cve-2025-41251-unveiling-vmware-nsx-s-weak-password-recovery-mechanism-vulnerability","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-41251-unveiling-vmware-nsx-s-weak-password-recovery-mechanism-vulnerability\/","title":{"rendered":"<strong>CVE-2025-41251: Unveiling VMware NSX&#8217;s Weak Password Recovery Mechanism Vulnerability<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>In today&#8217;s digital landscape, cybersecurity has become a top priority for businesses and organizations. A single vulnerability can open the door to catastrophic data breaches and system compromises. This blog post delves into one such vulnerability, CVE-2025-41251, a critical <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32486-high-risk-weak-password-recovery-mechanism-vulnerability-in-hossein-material-dashboard\/\"  data-wpil-monitor-id=\"89146\">weakness found within VMware NSX&#8217;s password recovery mechanism<\/a>. This vulnerability threatens numerous versions of VMware NSX and VMware Cloud Foundation, and if unaddressed, could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9443-buffer-overflow-vulnerability-in-tenda-ch22-1-0-0-1-potentially-leads-to-system-compromise\/\"  data-wpil-monitor-id=\"89041\">lead to potential system<\/a> compromise or data leakage. With a CVSS Severity Score of 8.1, this vulnerability is one that cannot be overlooked.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-41251<br \/>\nSeverity: Important, CVSSv3: 8.1 (High)<br \/>\nAttack Vector: Remote, unauthenticated<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: Username enumeration leading to credential brute force risk, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9364-critical-open-database-issue-resulting-in-potential-system-compromise\/\"  data-wpil-monitor-id=\"89059\">potential system<\/a> compromise or data leakage.<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-2433387073\" 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>VMware NSX | 9.x.x.x, 4.2.x, 4.1.x, 4.0.x<br \/>\nNSX-T | 3.x<br \/>\nVMware Cloud Foundation (with NSX) | 5.x, 4.5.x<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-25737-critical-vulnerability-in-kapsch-trafficcom-rsus-due-to-lack-of-secure-password-requirements\/\"  data-wpil-monitor-id=\"89237\">vulnerability lies within the password<\/a> recovery mechanism of VMware&#8217;s NSX product. An unauthenticated attacker could exploit this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-10533-critical-vulnerability-in-firefox-and-thunderbird-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"89407\">vulnerability to enumerate valid usernames potentially<\/a>. This enumeration process could then help facilitate a brute-force attack by trying combinations of usernames and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43342-critical-correctness-issue-leading-to-unexpected-process-crash-in-multiple-apple-products\/\"  data-wpil-monitor-id=\"89668\">passwords<\/a> until the correct one is found. Given that the attack can be carried out remotely, it significantly increases the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52930-high-risk-memory-corruption-vulnerability-in-sail-image-decoding-library\/\"  data-wpil-monitor-id=\"90884\">risk associated with this vulnerability<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-408974812\" 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 conceptual example of how the vulnerability might be exploited could be a crafted HTTP request to the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9712-critical-remote-code-execution-vulnerability-in-ivanti-endpoint-manager\/\"  data-wpil-monitor-id=\"89123\">password recovery<\/a> endpoint. An example would look like this:<\/p>\n<pre><code class=\"\" data-line=\"\">GET \/password_recovery HTTP\/1.1\nHost: target.example.com\n{ &quot;username&quot;: &quot;admin&quot; }<\/code><\/pre>\n<p>This request would return a response that could inadvertently reveal whether the username &#8220;admin&#8221; is valid or not, thereby enabling username enumeration.<\/p>\n<p><strong>Impact Summary<\/strong><\/p>\n<p>If successfully exploited, CVE-2025-41251 could lead to a severe security breach. The malicious actor could potentially gain <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-59017-unauthorized-access-via-ajax-backend-routes-in-typo3-cms\/\"  data-wpil-monitor-id=\"89173\">unauthorized access<\/a> to the system, leading to system compromise or data leakage.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>Given the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-37123-high-severity-privilege-escalation-vulnerability-in-hpe-aruba-networking-edgeconnect-sd-wan-gateways\/\"  data-wpil-monitor-id=\"89628\">severity of the vulnerability<\/a>, users are advised to apply the vendor patch immediately. VMware has released fixed versions for the affected products: NSX 9.0.1.0, 4.2.2.2\/4.2.3.1, 4.1.2.7; NSX-T 3.2.4.3; and a CCF async patch (KB88287). In scenarios where immediate patching is not possible, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) could serve as temporary mitigation. However, these should not be considered long-term solutions as they do not address the root <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-41714-critical-vulnerability-in-upload-endpoint-causing-arbitrary-file-write-and-potential-remote-code-execution\/\"  data-wpil-monitor-id=\"89525\">cause of the vulnerability<\/a>.<\/p>\n<p><strong>Acknowledgments<\/strong><\/p>\n<p>This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-34192-critical-security-vulnerability-in-vasion-print-due-to-outdated-openssl-library\/\"  data-wpil-monitor-id=\"89476\">vulnerability was reported by the National Security<\/a> Agency, highlighting the importance of collaborative efforts in enhancing cybersecurity across the board.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview In today&#8217;s digital landscape, cybersecurity has become a top priority for businesses and organizations. A single vulnerability can open the door to catastrophic data breaches and system compromises. This blog post delves into one such vulnerability, CVE-2025-41251, a critical weakness found within VMware NSX&#8217;s password recovery mechanism. This vulnerability threatens numerous versions of VMware [&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":[93],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-81724","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-vmware"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/81724","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=81724"}],"version-history":[{"count":12,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/81724\/revisions"}],"predecessor-version":[{"id":83830,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/81724\/revisions\/83830"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=81724"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=81724"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=81724"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=81724"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=81724"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=81724"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=81724"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=81724"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=81724"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}