{"id":79399,"date":"2025-10-01T11:28:04","date_gmt":"2025-10-01T11:28:04","guid":{"rendered":""},"modified":"2025-11-03T21:09:26","modified_gmt":"2025-11-04T03:09:26","slug":"cve-2025-10942-remote-buffer-overflow-vulnerability-in-h3c-magic-b3","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-10942-remote-buffer-overflow-vulnerability-in-h3c-magic-b3\/","title":{"rendered":"<strong>CVE-2025-10942: Remote Buffer Overflow Vulnerability in H3C Magic B3<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A pressing cybersecurity concern has been identified within the H3C Magic B3 up to version 100R002. This is a significant issue due to the potentially severe consequences it could inflict on affected systems and the information they hold. The vulnerability, which allows for remote initiation, involves the manipulation of an argument parameter <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47099-heap-based-buffer-overflow-vulnerability-in-incopy-leading-to-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"86791\">leading to a buffer overflow<\/a> in the file \/goform\/aspForm&#8217;s AddMacList function. This matter is of urgent concern as the exploit is publicly available and has the potential for widespread misuse if not addressed promptly.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-10942<br \/>\nSeverity: High (8.8 CVSS score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-26210-deepseek-xss-vulnerability-allows-potential-system-compromise\/\"  data-wpil-monitor-id=\"86674\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3217127059\" 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-2025-57578-critical-vulnerability-in-h3c-magic-m-device-allows-remote-code-execution\/\"  data-wpil-monitor-id=\"90943\">H3C Magic<\/a> B3 | Up to 100R002<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>This <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22412-logic-error-vulnerability-in-multiple-functions-of-sdp-server-cc\/\"  data-wpil-monitor-id=\"88900\">vulnerability arises from an issue within the AddMacList function<\/a> of the \/goform\/aspForm file. An attacker can manipulate the &#8216;param&#8217; argument of this function to trigger a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47125-heap-based-buffer-overflow-vulnerability-in-adobe-framemaker\/\"  data-wpil-monitor-id=\"86818\">buffer overflow<\/a>. This overflow could then be exploited to execute <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47129-out-of-bounds-write-vulnerability-in-adobe-framemaker-with-potential-for-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"86889\">arbitrary code<\/a> on the system, leading to potential system compromise or data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2287534027\" 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>Given the vulnerability&#8217;s nature, an attacker could potentially exploit it by sending an HTTP POST request with a specially crafted payload. A conceptual example of such an exploit might look like this:<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/goform\/aspForm HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\nparam=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...<\/code><\/pre>\n<p>The &#8216;param&#8217; value here is excessively long and would cause a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47122-heap-based-buffer-overflow-vulnerability-in-adobe-framemaker\/\"  data-wpil-monitor-id=\"86874\">buffer overflow<\/a> within the AddMacList function when processed. An attacker would typically replace the &#8216;A&#8217;s with malicious code intended to take control of the <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=\"87162\">system or exfiltrate data<\/a>.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>Users are advised to apply the vendor patch as soon as it becomes available. In the meantime, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can temporarily mitigate the vulnerability. These tools can monitor network traffic and detect or block suspicious activities <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48817-exploiting-relative-path-traversal-in-remote-desktop-clients\/\"  data-wpil-monitor-id=\"92333\">related to this exploit<\/a>. However, these are not long-term solutions, and the application of the vendor patch should be prioritized to fully mitigate this vulnerability.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A pressing cybersecurity concern has been identified within the H3C Magic B3 up to version 100R002. This is a significant issue due to the potentially severe consequences it could inflict on affected systems and the information they hold. The vulnerability, which allows for remote initiation, involves the manipulation of an argument parameter leading to [&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":[86],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-79399","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/79399","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=79399"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/79399\/revisions"}],"predecessor-version":[{"id":85556,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/79399\/revisions\/85556"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=79399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=79399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=79399"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=79399"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=79399"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=79399"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=79399"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=79399"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=79399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}