{"id":33898,"date":"2025-04-30T01:03:19","date_gmt":"2025-04-30T01:03:19","guid":{"rendered":""},"modified":"2025-05-29T11:44:34","modified_gmt":"2025-05-29T17:44:34","slug":"cve-2025-3803-critical-vulnerability-in-tenda-w12-and-i24-3-0-0-4-3-0-0-5-resulting-in-stack-based-buffer-overflow","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-3803-critical-vulnerability-in-tenda-w12-and-i24-3-0-0-4-3-0-0-5-resulting-in-stack-based-buffer-overflow\/","title":{"rendered":"CVE-2025-3803: Critical Vulnerability in Tenda W12 and i24 3.0.0.4\/3.0.0.5 Resulting in Stack-Based Buffer Overflow<\/strong>"},"content":{"rendered":"

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

In today’s cybersecurity landscape, a new critical vulnerability has been identified, labeled as CVE-2025-3803. It primarily affects Tenda’s W12 and i24 devices running firmware versions 3.0.0.4(2887) and 3.0.0.5(3644), respectively. This flaw is of paramount importance due to the fact that it could lead to potential system<\/a> compromise or data leakage, posing a significant threat to data integrity and confidentiality.<\/p>\n

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

CVE ID: CVE-2025-3803
\nSeverity: Critical (CVSS Severity Score: 8.8)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise, potential data leakage<\/a><\/p>\n

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

Product | Affected Versions<\/p>\n

Tenda W12<\/a> | 3.0.0.4(2887)
\nTenda i24<\/a> | 3.0.0.5(3644)<\/p>\n

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

The vulnerability lies within the cgiSysScheduleRebootSet function of the \/bin\/httpd file<\/a>. This function handles the arguments for rebooting the device. The exploit takes advantage of the manipulation of the “rebootDate” argument, leading to a stack-based buffer overflow<\/a>. This overflow can cause the system to execute arbitrary code, potentially compromising the system or leading<\/a> to data leakage. The vulnerability can be exploited remotely<\/a>, and the details have been disclosed to the public.<\/p>\n

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

Here is a simplified conceptual example of a malicious HTTP request that could exploit this vulnerability<\/a>:<\/p>\n

POST \/cgi-bin\/httpd?rebootDate HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{ \"rebootDate\": \"A long string that causes a buffer overflow...\" }<\/code><\/pre>\n
In this example, the attacker sends a POST request<\/a> to the device’s server with an excessively long “rebootDate” value. This results in a buffer overflow that could allow the execution of arbitrary code<\/a>.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
To mitigate this vulnerability, it is advised to apply the vendor patch as soon as it is available. If the patch is not yet available or cannot be applied immediately, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation. These systems can detect and block malicious requests<\/a>, preventing the exploit from being successful. Please ensure to always keep your systems updated to the latest firmware to prevent such vulnerabilities<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview In today’s cybersecurity landscape, a new critical vulnerability has been identified, labeled as CVE-2025-3803. It primarily affects Tenda’s W12 and i24 devices running firmware versions 3.0.0.4(2887) and 3.0.0.5(3644), respectively. This flaw is of paramount importance due to the fact that it could lead to potential system compromise or data leakage, posing a significant threat […]<\/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":[103],"product":[104],"attack_vector":[86],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-33898","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-apache","product-apache-httpd","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