{"id":52963,"date":"2025-06-17T10:21:14","date_gmt":"2025-06-17T10:21:14","guid":{"rendered":""},"modified":"2025-09-10T17:20:15","modified_gmt":"2025-09-10T23:20:15","slug":"cve-2025-5910-critical-buffer-overflow-vulnerability-in-totolink-ex1200t","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-5910-critical-buffer-overflow-vulnerability-in-totolink-ex1200t\/","title":{"rendered":"CVE-2025-5910: Critical Buffer Overflow Vulnerability in TOTOLINK EX1200T<\/strong>"},"content":{"rendered":"

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

A critical vulnerability has been discovered in the TOTOLINK EX1200T up to version 4.1.2cu.5232_B20210713. This vulnerability, identified as CVE-2025-5910, affects an unknown function of the file \/boafrm\/formWsc, which is a component of the HTTP POST Request Handler. What makes this vulnerability particularly concerning is the fact that it can be exploited remotely<\/a>, and the details of the exploit have already been made public. This means that potential attackers are more likely to exploit<\/a> it, leading to a higher risk for users.<\/p>\n

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

CVE ID: CVE-2025-5910
\nSeverity: Critical, CVSS score 8.8
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system compromise<\/a> or data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

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

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

The vulnerability stems from a buffer overflow<\/a> condition within the HTTP POST Request Handler’s handling of the \/boafrm\/formWsc file. If an attacker crafts a malicious HTTP POST request with an oversized payload, it could overflow the buffer<\/a> and cause undefined behavior in the system. This could allow the attacker to execute arbitrary code<\/a>, potentially leading to system compromise or data leakage.<\/p>\n

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

The following is a conceptual example of how an attacker might exploit this vulnerability. Please note that this is a simplified representation and actual attack may involve more complex payloads.<\/p>\n

POST \/boafrm\/formWsc HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\nparam1=value1¶m2=value2&...¶mN=very_long_string_exceeding_buffer_capacity<\/code><\/pre>\n
In the above example, `paramN` is the parameter that the attacker uses to overflow the buffer<\/a>, where `very_long_string_exceeding_buffer_capacity` is a string that exceeds the capacity of the buffer.<\/p>\n
Mitigation<\/strong><\/p>\n
Users are advised to apply vendor provided patches as soon as possible. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. However, these measures cannot fully protect against the vulnerability<\/a> and are only intended as a stop-gap until the patch can be applied.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview A critical vulnerability has been discovered in the TOTOLINK EX1200T up to version 4.1.2cu.5232_B20210713. This vulnerability, identified as CVE-2025-5910, affects an unknown function of the file \/boafrm\/formWsc, which is a component of the HTTP POST Request Handler. What makes this vulnerability particularly concerning is the fact that it can be exploited remotely, and 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],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-52963","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