{"id":53869,"date":"2025-06-21T03:58:56","date_gmt":"2025-06-21T03:58:56","guid":{"rendered":""},"modified":"2025-08-30T00:12:42","modified_gmt":"2025-08-30T06:12:42","slug":"cve-2025-6130-critical-buffer-overflow-vulnerability-in-totolink-ex1200t-4-1-2cu-5232-b20210713","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-6130-critical-buffer-overflow-vulnerability-in-totolink-ex1200t-4-1-2cu-5232-b20210713\/","title":{"rendered":"CVE-2025-6130: Critical Buffer Overflow Vulnerability in TOTOLINK EX1200T 4.1.2cu.5232_B20210713<\/strong>"},"content":{"rendered":"

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

A critical security vulnerability, labeled as CVE-2025-6130, has been identified in TOTOLINK EX1200T 4.1.2cu.5232_B20210713 that can potentially compromise the system or lead to data leakage. This vulnerability is of particular concern due to its ability to be exploited remotely, posing a significant risk to all systems utilizing the vulnerable version of this software. This blog post aims to provide an in-depth understanding of the vulnerability<\/a>, its potential impact, and the necessary steps to mitigate it.<\/p>\n

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

CVE ID: CVE-2025-6130
\nSeverity: Critical (CVSS Score 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

TOTOLINK EX1200T<\/a> | 4.1.2cu.5232_B20210713<\/p>\n

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

The CVE-2025-6130 vulnerability is a result<\/a> of insufficient boundary checks in the HTTP POST Request Handler during processing of the file \/boafrm\/formStats. This oversight allows an attacker to trigger a buffer overflow<\/a> by sending an oversized HTTP POST request. The overflow can overwrite critical<\/a> data structures or inject malicious code, leading to potential system compromise or data leakage. The attack can be initiated remotely without any user<\/a> interaction or privileges, making this vulnerability extremely dangerous.<\/p>\n

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

Here is a conceptual example illustrating how a potential HTTP POST request might exploit this vulnerability<\/a>:<\/p>\n

POST \/boafrm\/formStats HTTP\/1.1\nHost: target.example.com\nContent-Length: 100000\n{ \"malicious_payload\": \"A\".repeat(100000) }<\/code><\/pre>\n
In this example, the payload length is significantly larger than expected, leading to a buffer overflow<\/a> when the server attempts to process the request.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
The best course of action to mitigate this vulnerability<\/a> is to apply the vendor patch as soon as it is available. In situations where applying the patch immediately is not feasible, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) as a temporary measure can help minimize the risk. These mechanisms can be configured to detect and block oversized HTTP POST requests to the vulnerable<\/a> endpoint, providing a temporary layer of protection until the patch is applied.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview A critical security vulnerability, labeled as CVE-2025-6130, has been identified in TOTOLINK EX1200T 4.1.2cu.5232_B20210713 that can potentially compromise the system or lead to data leakage. This vulnerability is of particular concern due to its ability to be exploited remotely, posing a significant risk to all systems utilizing the vulnerable version of this software. This […]<\/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-53869","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