{"id":64103,"date":"2025-08-16T19:34:16","date_gmt":"2025-08-16T19:34:16","guid":{"rendered":""},"modified":"2025-09-16T00:11:46","modified_gmt":"2025-09-16T06:11:46","slug":"cve-2025-50130-heap-based-buffer-overflow-vulnerability-in-v-sft-and-tellus","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-50130-heap-based-buffer-overflow-vulnerability-in-v-sft-and-tellus\/","title":{"rendered":"<strong>CVE-2025-50130: Heap-Based Buffer Overflow Vulnerability in V-SFT and TELLUS<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A recently identified cybersecurity vulnerability, CVE-2025-50130, presents a significant risk to users of V-SFT and TELLUS software provided by FUJI ELECTRIC CO., LTD. This vulnerability allows a potential attacker to execute arbitrary code, potentially leading to system compromise or data leakage. Given that V-SFT and TELLUS are frequently used in industrial settings, the implications of this vulnerability could be severe, impacting not just data integrity but potentially physical operations and safety as well.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-50130<br \/>\nSeverity: High (7.8 CVSS Score)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<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=\"78442\">System compromise<\/a>, data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-89647932\" 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>V-SFT | All <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-55010-arbitrary-php-object-instantiation-in-kanboard-prior-to-version-1-2-47\/\"  data-wpil-monitor-id=\"77949\">versions prior<\/a> to the vendor patch<br \/>\nTELLUS | All <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-46715-kernel-pointer-vulnerability-in-sandboxie-versions-prior-to-1-15-12\/\"  data-wpil-monitor-id=\"82789\">versions prior<\/a> to the vendor patch<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit hinges on a heap-based <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8184-critical-stack-based-buffer-overflow-vulnerability-in-d-link-dir-513\/\"  data-wpil-monitor-id=\"71775\">buffer overflow vulnerability<\/a> within the VS6Sim.exe component of the V-SFT and TELLUS software. By crafting a malicious V9 or X1 file and getting the user to open it in the software, an attacker can cause a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7463-critical-buffer-overflow-vulnerability-in-tenda-fh1201-1-2-0-14\/\"  data-wpil-monitor-id=\"71836\">buffer overflow<\/a>. This <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=\"73574\">overflow can then lead to arbitrary code<\/a> execution, allowing the attacker to potentially compromise the system or leak data.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3362990996\" 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>Please note that the following example is a conceptual representation of how the exploit might work. It&#8217;s not actual <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47168-use-after-free-vulnerability-in-microsoft-office-word-allowing-unauthorized-code-execution\/\"  data-wpil-monitor-id=\"73192\">code and can&#8217;t be used to exploit the vulnerability<\/a>. The purpose is to demonstrate the underlying principles of the exploit.<\/p>\n<pre><code class=\"\" data-line=\"\">#include &lt;stdlib.h&gt;\n#include &lt;string.h&gt;\nvoid vulnerable_function(char *input) {\nchar buffer[256];\nstrcpy(buffer, input);\n}\nint main(int argc, char **argv) {\nchar large_input[512];\nmemset(large_input, &#039;A&#039;, 511);\nlarge_input[511] = &#039;\\0&#039;;\nvulnerable_function(large_input);\nreturn 0;\n}<\/code><\/pre>\n<p>In this conceptual example, a large input is copied into a smaller buffer, causing a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49691-heap-based-buffer-overflow-in-windows-media-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"72047\">buffer overflow<\/a>. In the context of the CVE-2025-50130 vulnerability, an attacker might use a similar approach to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49674-windows-rras-heap-based-buffer-overflow-vulnerability\/\"  data-wpil-monitor-id=\"72318\">overflow the buffer<\/a> in the VS6Sim.exe component with malicious code.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p><a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32412-unchecked-buffer-vulnerability-in-fuji-electric-smart-editor\/\"  data-wpil-monitor-id=\"75710\">FUJI ELECTRIC<\/a> CO., LTD. recommends applying the vendor patch to mitigate the vulnerability. In the absence of a patch, or until one can be applied, Web Application Firewalls (WAF) or Intrusion Detection Systems (IDS) can provide temporary mitigation. However, these are not long-term solutions and the patch should be applied as soon as possible to fully protect against the exploit.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A recently identified cybersecurity vulnerability, CVE-2025-50130, presents a significant risk to users of V-SFT and TELLUS software provided by FUJI ELECTRIC CO., LTD. This vulnerability allows a potential attacker to execute arbitrary code, potentially leading to system compromise or data leakage. Given that V-SFT and TELLUS are frequently used in industrial settings, the implications [&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":[86,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-64103","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64103","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=64103"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64103\/revisions"}],"predecessor-version":[{"id":75325,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/64103\/revisions\/75325"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=64103"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=64103"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=64103"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=64103"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=64103"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=64103"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=64103"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=64103"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=64103"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}