{"id":56751,"date":"2025-07-03T04:10:04","date_gmt":"2025-07-03T04:10:04","guid":{"rendered":""},"modified":"2025-10-03T12:32:32","modified_gmt":"2025-10-03T18:32:32","slug":"cve-2025-6732-critical-buffer-overflow-vulnerability-in-utt-hiper-840g","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-6732-critical-buffer-overflow-vulnerability-in-utt-hiper-840g\/","title":{"rendered":"CVE-2025-6732: Critical Buffer Overflow Vulnerability in UTT HiPER 840G<\/strong>"},"content":{"rendered":"

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

The cybersecurity landscape is riddled with vulnerabilities that can potentially compromise systems, lead to data leakage, or facilitate malicious activities. One such vulnerability is the CVE-2025-6732, a critical buffer overflow vulnerability found in UTT HiPER 840G up to version 3.1.1-190328. This vulnerability is particularly concerning due to its severity<\/a> and the potential for remote exploitation. It affects the API component of the router, specifically the strcpy function of \/goform\/setSysAdm file, and is a stark reminder of the importance of proactive cybersecurity<\/a> measures.<\/p>\n

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

CVE ID: CVE-2025-6732
\nSeverity: Critical (CVSS: 8.8)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system<\/a> compromise and data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

UTT HiPER<\/a> 840G | up to 3.1.1-190328<\/p>\n

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

The vulnerability lies in the buffer overflow<\/a> potential of the strcpy function of \/goform\/setSysAdm file of the API component. By manipulating the argument passwd1, an attacker can cause the system to overflow the buffer, leading to potential system<\/a> compromise. The attack can be initiated remotely<\/a>, thus increasing the risk significantly. It is noteworthy that the exploit has been disclosed publicly, thereby increasing the possibility of its use in malicious activities.<\/p>\n

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

An example of how the vulnerability might be exploited is presented below. This is a conceptual representation and should not be used for malicious purposes.<\/p>\n

POST \/goform\/setSysAdm HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\npasswd1= [Insert long string that causes buffer overflow]<\/code><\/pre>\n
Mitigation and Recommendations<\/strong><\/p>\n
While the vendor, UTT Technologies, has not yet issued a patch, it is highly recommended to apply vendor patches as soon as they become available. In the meantime, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as temporary mitigation measures. Moreover, regular auditing of router configurations and continuous monitoring of network traffic can help identify any irregularities indicative of a potential exploit<\/a>.
\nFurthermore, as a general rule, devices should be updated regularly to the latest firmware version to protect against known vulnerabilities, and default passwords should be changed to strong, unique passwords to reduce the risk of unauthorized access<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The cybersecurity landscape is riddled with vulnerabilities that can potentially compromise systems, lead to data leakage, or facilitate malicious activities. One such vulnerability is the CVE-2025-6732, a critical buffer overflow vulnerability found in UTT HiPER 840G up to version 3.1.1-190328. This vulnerability is particularly concerning due to its severity and the potential for remote […]<\/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":[86],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-56751","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow"],"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