{"id":51827,"date":"2025-06-14T05:52:39","date_gmt":"2025-06-14T05:52:39","guid":{"rendered":""},"modified":"2025-07-11T05:39:48","modified_gmt":"2025-07-11T11:39:48","slug":"cve-2025-5795-critical-remote-buffer-overflow-vulnerability-in-tenda-ac5","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-5795-critical-remote-buffer-overflow-vulnerability-in-tenda-ac5\/","title":{"rendered":"CVE-2025-5795: Critical Remote Buffer Overflow Vulnerability in Tenda AC5<\/strong>"},"content":{"rendered":"

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

A critical vulnerability identified as CVE-2025-5795 has been discovered, affecting the Tenda AC5 1.0\/15.03.06.47 router. This vulnerability resides in the function fromadvsetlanip of the file \/goform\/AdvSetLanip, and it is linked to the improper handling of the lanMask argument which results in buffer overflow. Given the severity of this vulnerability<\/a>, it is vital that network administrators and users of the affected product be aware and take necessary measures to mitigate the risk. This is because successful exploitation could lead to potential system<\/a> compromise or data leakage.<\/p>\n

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

CVE ID: CVE-2025-5795
\nSeverity: Critical (8.8 CVSS v3)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise and potential<\/a> data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

Tenda AC5<\/a> | 1.0\/15.03.06.47<\/p>\n

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

The vulnerability stems from the improper<\/a> handling of the lanMask argument in the fromadvsetlanip function of the \/goform\/AdvSetLanip file. An attacker can manipulate this argument to cause a buffer overflow<\/a>. This can be done remotely without requiring any user interaction or privileges<\/a>. Upon successful exploitation, the attacker can potentially compromise the system<\/a> and leak sensitive data.<\/p>\n

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

The following is a conceptual example of how an attacker might exploit this vulnerability via a malicious HTTP request:<\/a><\/p>\n

POST \/goform\/AdvSetLanip HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\nlanMask=256&lanIp=192.168.1.1&lanGateway=192.168.1.254<\/code><\/pre>\n
In this example, the attacker manipulates the lanMask argument to an invalid value, causing a buffer overflow<\/a> in the system. Note that this is a simplified example and real-world attacks may involve more complexity.<\/p>\n
Mitigation Recommendations<\/strong><\/p>\n
Users and administrators are strongly advised to apply the vendor-provided patch as soon as possible to mitigate the risk posed by this vulnerability<\/a>. If a patch cannot be immediately applied, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure to detect and block attempts to exploit this vulnerability<\/a>. However, these should not be seen as long-term solutions and users should apply patches as soon as they become available.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview A critical vulnerability identified as CVE-2025-5795 has been discovered, affecting the Tenda AC5 1.0\/15.03.06.47 router. This vulnerability resides in the function fromadvsetlanip of the file \/goform\/AdvSetLanip, and it is linked to the improper handling of the lanMask argument which results in buffer overflow. Given the severity of this vulnerability, it is vital that network […]<\/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-51827","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