{"id":59473,"date":"2025-07-18T17:52:49","date_gmt":"2025-07-18T17:52:49","guid":{"rendered":""},"modified":"2025-09-03T19:03:39","modified_gmt":"2025-09-04T01:03:39","slug":"cve-2025-7528-critical-buffer-overflow-vulnerability-in-tenda-fh1202-1-2-0-14-408","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-7528-critical-buffer-overflow-vulnerability-in-tenda-fh1202-1-2-0-14-408\/","title":{"rendered":"CVE-2025-7528: Critical Buffer Overflow Vulnerability in Tenda FH1202 1.2.0.14(408)<\/strong>"},"content":{"rendered":"

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

The cybersecurity landscape is constantly evolving with new vulnerabilities being discovered daily. One such critical vulnerability has been found in the Tenda FH1202 1.2.0.14(408) router model, specifically within the \/goform\/GstDhcpSetSer file. This vulnerability is considered critical due to its potential for remote<\/a> code execution, which could lead to system compromise or data leakage. The router’s wide usage in both home and business environments underlines the severity of this vulnerability<\/a> and its potential for widespread damage.<\/p>\n

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

CVE ID: CVE-2025-7528
\nSeverity: Critical, CVSS Severity Score: 8.8
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system<\/a> compromise or data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

Tenda FH1202 | 1.2.0.14(408)<\/p>\n

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

The vulnerability lies in the function fromGstDhcpSetSer of the file<\/a> \/goform\/GstDhcpSetSer. The manipulation of the argument ‘dips’ leads to a stack-based buffer overflow<\/a>. This overflow can result in the execution of arbitrary code<\/a> due to the corruption of critical data structures. As it is possible to launch the exploit remotely, an attacker can compromise the system<\/a> without requiring any user interaction.<\/p>\n

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

A conceptual example demonstrating the exploitation of this vulnerability could look like this:<\/p>\n

POST \/goform\/GstDhcpSetSer HTTP\/1.1\nHost: target_router_ip\nContent-Type: application\/x-www-form-urlencoded\ndips=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...<\/code><\/pre>\n
In the above example, the ‘dips’ argument is manipulated with a long string of ‘A’s causing a buffer overflow<\/a>.<\/p>\n
Mitigation<\/strong><\/p>\n
Tenda has released a patch to address this vulnerability<\/a>. Users are strongly urged to update their devices to the latest firmware version as soon as possible. For temporary mitigation, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to detect and prevent attempts to exploit this vulnerability<\/a>. However, these are not long-term solutions, and the device’s firmware should be updated as soon as feasible.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The cybersecurity landscape is constantly evolving with new vulnerabilities being discovered daily. One such critical vulnerability has been found in the Tenda FH1202 1.2.0.14(408) router model, specifically within the \/goform\/GstDhcpSetSer file. This vulnerability is considered critical due to its potential for remote code execution, which could lead to system compromise or data leakage. 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":[86,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-59473","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow","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