{"id":59319,"date":"2025-07-12T03:42:47","date_gmt":"2025-07-12T03:42:47","guid":{"rendered":""},"modified":"2025-08-29T01:22:24","modified_gmt":"2025-08-29T07:22:24","slug":"cve-2025-50258-buffer-overflow-vulnerability-in-tenda-ac6-router","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-50258-buffer-overflow-vulnerability-in-tenda-ac6-router\/","title":{"rendered":"CVE-2025-50258: Buffer Overflow Vulnerability in Tenda AC6 Router<\/strong>"},"content":{"rendered":"

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

In the ever-evolving landscape of cybersecurity, a new vulnerability has been discovered in Tenda AC6 v15.03.05.16_multi routers. This vulnerability, identified as CVE-2025-50258, has been found to be susceptible to a buffer overflow attack via the SetSysTimeCfg function. This issue affects a wide range of users, from individual households to enterprise networks that use the vulnerable version of Tenda<\/a> AC6 routers. The severity of this vulnerability lies in its potential to compromise systems<\/a> or leak data, which is a significant threat to privacy and information security.<\/p>\n

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

CVE ID: CVE-2025-50258
\nSeverity: High (8.1 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: Low
\nUser Interaction: None
\nImpact: Potential system<\/a> compromise or data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

Tenda AC6<\/a> Router | v15.03.05.16_multi<\/p>\n

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

The vulnerability arises from a buffer overflow<\/a> condition in the SetSysTimeCfg function of the Tenda AC6 router. A buffer overflow<\/a> occurs when more data is written to a buffer than it can handle, causing an overflow of data into adjacent memory locations. In this case, the overflow is triggered via the time parameter, allowing a malicious attacker to execute arbitrary code<\/a> or cause a denial of service.<\/p>\n

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

Here’s a conceptual example of a malformed HTTP request that could exploit this vulnerability<\/a>:<\/p>\n

POST \/SetSysTimeCfg HTTP\/1.1\nHost: target.router.ip\nContent-Type: application\/json\n{\n\"time\": \"\"\n}<\/code><\/pre>\n
In the above example, “ would be replaced by a string that causes the buffer to overflow<\/a>, potentially allowing arbitrary code execution.<\/p>\n
Impact and Mitigation<\/strong><\/p>\n
The impact of this vulnerability is severe, as it could potentially allow an attacker to compromise the entire system or lead<\/a> to data leakage. The CVSS score of 8.1 further emphasizes the severity of this vulnerability<\/a>.
\nTo mitigate this vulnerability, users are urged to apply the vendor patch as soon as it becomes available. In the meantime, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. These systems can detect and block suspicious activities, providing a layer of protection against potential attacks exploiting<\/a> this vulnerability.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview In the ever-evolving landscape of cybersecurity, a new vulnerability has been discovered in Tenda AC6 v15.03.05.16_multi routers. This vulnerability, identified as CVE-2025-50258, has been found to be susceptible to a buffer overflow attack via the SetSysTimeCfg function. This issue affects a wide range of users, from individual households to enterprise networks that use the […]<\/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":[86,87,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-59319","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow","attack_vector-dos","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