{"id":59350,"date":"2025-07-13T10:53:34","date_gmt":"2025-07-13T10:53:34","guid":{"rendered":""},"modified":"2025-08-29T08:19:59","modified_gmt":"2025-08-29T14:19:59","slug":"cve-2025-47757-exploitable-out-of-bounds-read-vulnerability-in-v-sft-v6-2-5-0-and-earlier","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-47757-exploitable-out-of-bounds-read-vulnerability-in-v-sft-v6-2-5-0-and-earlier\/","title":{"rendered":"CVE-2025-47757: Exploitable Out-Of-Bounds Read Vulnerability in V-SFT v6.2.5.0 and Earlier<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The vulnerability CVE-2025-47757 is a severe security flaw found in V-SFT v6.2.5.0 and earlier versions. This vulnerability arises due to an out-of-bounds read issue in the VS6MemInIF.dll!set_plc_type_default function. The flaw exposes users to the risk of a system crash, data leakage, and arbitrary code execution when opening<\/a> specially crafted V7 or V8 files. Given the widespread use of the V-SFT software in different industries, including manufacturing and power distribution, it’s imperative for users and system administrators to understand and address this vulnerability<\/a> promptly.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-47757
\nSeverity: High – CVSS Score of 7.8
\nAttack Vector: Local
\nPrivileges Required: Low
\nUser Interaction: Required
\nImpact: Potential system crash, information disclosure, and arbitrary code execution<\/a><\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

V-SFT | v6.2.5.0<\/a> and earlier<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The CVE-2025-47757 vulnerability occurs due to an out-of-bounds<\/a> read error in the VS6MemInIF.dll!set_plc_type_default function. An attacker may craft V7 or V8 files, which when opened, trigger this error. This error then leads to undefined behavior, which might result in a system crash, information disclosure, or even arbitrary code execution under certain conditions<\/a>. The code execution<\/a> occurs in the context of the application and can lead to a full compromise of the affected system.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Imagine an attacker who crafts a malicious V8 file with specific data intended to trigger the out-of-bounds read<\/a> error. The code might look something like this (note: this is a conceptual example and not actual exploit code):<\/p>\n

#include \n#include \nint main() {\n\/\/ The crafted V8 file data\nchar crafted_data[] = \"specially crafted data triggering out-of-bounds read\";\nFILE *file;\nfile = fopen(\"malicious.v8\", \"w\");\nif (file != NULL) {\nfwrite(crafted_data, sizeof(char), sizeof(crafted_data)-1, file);\nfclose(file);\n}\nreturn 0;\n}<\/code><\/pre>\n
This code creates a malicious V8 file that, when opened with a vulnerable version<\/a> of V-SFT, would trigger the out-of-bounds read error, potentially leading to a system crash, information disclosure, or arbitrary code execution.<\/p>\n
Mitigation<\/strong><\/p>\n
Users and administrators are advised to update their V-SFT software to the latest version to mitigate this vulnerability<\/a>. If an update isn’t immediately possible, consider using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation. These systems can help detect and prevent attempts to exploit<\/a> this vulnerability, thereby protecting your system and data.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The vulnerability CVE-2025-47757 is a severe security flaw found in V-SFT v6.2.5.0 and earlier versions. This vulnerability arises due to an out-of-bounds read issue in the VS6MemInIF.dll!set_plc_type_default function. The flaw exposes users to the risk of a system crash, data leakage, and arbitrary code execution when opening specially crafted V7 or V8 files. Given […]<\/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,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-59350","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t