{"id":59245,"date":"2025-07-11T17:39:02","date_gmt":"2025-07-11T17:39:02","guid":{"rendered":""},"modified":"2025-10-22T21:12:49","modified_gmt":"2025-10-23T03:12:49","slug":"cve-2025-7088-critical-buffer-overflow-vulnerability-in-belkin-f9k1122-1-00-33","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-7088-critical-buffer-overflow-vulnerability-in-belkin-f9k1122-1-00-33\/","title":{"rendered":"<strong>CVE-2025-7088: Critical Buffer Overflow Vulnerability in Belkin F9K1122 1.00.33<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity landscape continues to evolve with new vulnerabilities being discovered on a regular basis. The latest in the line of these vulnerabilities is CVE-2025-7088, a critical stack-based buffer overflow vulnerability found in Belkin F9K1122 1.00.33. This vulnerability, if exploited, gives attackers the opportunity to compromise the system or leak <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43233-critical-https-proxy-vulnerability-allowing-sensitive-data-access\/\"  data-wpil-monitor-id=\"69346\">sensitive data<\/a>, with the potential to cause significant harm to the affected organization.<br \/>\nBelkin devices are widely used in homes and businesses alike, making this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-28990-critical-php-local-file-inclusion-vulnerability-in-sns-vicky\/\"  data-wpil-monitor-id=\"65811\">vulnerability a critical<\/a> issue that demands immediate attention. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-41672-critical-cybersecurity-threat-exploiting-default-certificates\/\"  data-wpil-monitor-id=\"91258\">threat is compounded by the fact that the exploit<\/a> has been publicly disclosed, making it accessible to malicious actors looking to take advantage of unpatched systems. The vendor, Belkin, was <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7340-critical-arbitrary-file-upload-vulnerability-in-ht-contact-form-widget-for-wordpress\/\"  data-wpil-monitor-id=\"66881\">contacted regarding this vulnerability<\/a> but has yet to respond.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-7088<br \/>\nSeverity: Critical (8.8\/10, CVSS Severity Score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-50160-heap-based-buffer-overflow-in-windows-rras-posing-system-compromise-risk\/\"  data-wpil-monitor-id=\"78472\">System compromise<\/a> or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1937244058\" 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: 720px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 22px; font-weight: 600; display: flex; align-items: center; letter-spacing: -0.02em;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 10px;\">\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: 42px; height: 42px;\" \/>\r\n    <\/a>\r\n    Share secrets securely\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 14px; color: #d1d5db;\">\r\n    Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 18px; color: #a1a1aa;\">\r\n    Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 24px; color: #e4e4e7;\">\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Encrypted identity<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Private Spaces for organizations and teams<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 End-to-end encrypted chat, calls, files, and notes<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Sensitive AI work and protected collaboration<\/li>\r\n    <li>\u2022 Built for information that cannot leak<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px; color: #ffffff;\">\r\n    Our mission is to secure human work alongside AI.\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: 8px; font-weight: 500;\">\r\n      Download Ameeba\r\n    <\/a>\r\n\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 8px; font-weight: 500;\">\r\n      Learn More\r\n    <\/a>\r\n  <\/div>\r\n<\/div><\/div>\n<p>Product | Affected Versions<\/p>\n<p><a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7090-critical-buffer-overflow-vulnerability-in-belkin-f9k1122-1-00-33\/\"  data-wpil-monitor-id=\"70789\">Belkin F9K1122<\/a> | 1.00.33<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-24769-php-remote-file-inclusion-vulnerability-in-bzotheme-zenny\/\"  data-wpil-monitor-id=\"65799\">vulnerability resides in the formPPPoESetup function of the \/goform\/formPPPoESetup file<\/a>. It allows an attacker to manipulate the argument pppUserName, leading to a stack-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6881-critical-buffer-overflow-vulnerability-in-d-link-di-8100\/\"  data-wpil-monitor-id=\"65829\">buffer overflow<\/a>. This type of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6882-critical-buffer-overflow-vulnerability-in-d-link-dir-513-1-0\/\"  data-wpil-monitor-id=\"65835\">overflow occurs when more data is written into a buffer<\/a> than it can handle, causing it to overflow and overwrite adjacent memory locations. As this can be initiated remotely, it provides an opportunity for an attacker to inject malicious code, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7419-critical-vulnerability-discovered-in-tenda-o3v2-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"69347\">potentially leading to system<\/a> compromise or data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-2124776874\" 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>The following is a conceptual example of how the vulnerability might be exploited. The attacker sends a malicious POST request to the formPPPoESetup function with an oversized pppUserName argument, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7460-critical-vulnerability-in-totolink-t6-leads-to-buffer-overflow\/\"  data-wpil-monitor-id=\"66880\">leading to the buffer<\/a> overflow.<\/p>\n<pre><code class=\"\" data-line=\"\">POST \/goform\/formPPPoESetup HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\npppUserName=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA... (continues to length that causes buffer overflow)<\/code><\/pre>\n<p>Note that this is a hypothetical example and the actual malicious payload would likely be more complex, potentially containing specific commands or <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52187-critical-cross-site-scripting-xss-vulnerability-in-getprojectsidea-create-school-management-system-1-0\/\"  data-wpil-monitor-id=\"70233\">scripts to be executed on the compromised system<\/a>.<\/p>\n<p><strong>Recommended Mitigation<\/strong><\/p>\n<p>In the absence of a response from the vendor, Belkin, regarding a patch for this vulnerability, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-50738-memos-application-vulnerability-allows-for-unauthorized-user-information-disclosure\/\"  data-wpil-monitor-id=\"70234\">users are advised to implement a Web Application<\/a> Firewall (WAF) or Intrusion Detection System (IDS) as a temporary solution. These tools can help monitor network traffic and identify and block potential attacks. However, it is crucial to remain vigilant for updates from the vendor regarding a permanent fix.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity landscape continues to evolve with new vulnerabilities being discovered on a regular basis. The latest in the line of these vulnerabilities is CVE-2025-7088, a critical stack-based buffer overflow vulnerability found in Belkin F9K1122 1.00.33. This vulnerability, if exploited, gives attackers the opportunity to compromise the system or leak sensitive data, with the [&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-59245","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\/59245","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=59245"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59245\/revisions"}],"predecessor-version":[{"id":84287,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59245\/revisions\/84287"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=59245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=59245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=59245"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=59245"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=59245"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=59245"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=59245"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=59245"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=59245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}