{"id":59295,"date":"2025-07-11T20:40:32","date_gmt":"2025-07-11T20:40:32","guid":{"rendered":""},"modified":"2025-09-26T20:58:46","modified_gmt":"2025-09-27T02:58:46","slug":"cve-2025-7091-critical-buffer-overflow-vulnerability-in-belkin-f9k1122-1-00-33","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-7091-critical-buffer-overflow-vulnerability-in-belkin-f9k1122-1-00-33\/","title":{"rendered":"CVE-2025-7091: Critical Buffer Overflow Vulnerability in Belkin F9K1122 1.00.33<\/strong>"},"content":{"rendered":"

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

A critical vulnerability has been identified in the Belkin F9K1122 version 1.00.33. This vulnerability, tracked as CVE-2025-7091, can potentially lead to system compromise or data leakage. It impacts the function formWlanMP of the file \/goform\/formWlanMP of the component webs<\/a>. This vulnerability matters because it can be exploited remotely<\/a>, and the exploit details have been made public. Furthermore, the vendor has not responded to early disclosure, leaving the systems vulnerable<\/a>.<\/p>\n

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

CVE ID: CVE-2025-7091
\nSeverity: Critical, with a CVSS score of 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

Belkin F9K1122<\/a> | 1.00.33<\/p>\n

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

The vulnerability exists due to a stack-based buffer overflow<\/a> within the function formWlanMP of the file \/goform\/formWlanMP. This overflow is triggered by manipulating inputs to a series<\/a> of arguments. By sending a specially crafted input to these arguments, an attacker can cause the system to write data beyond the intended buffer space, potentially leading to system crashes or, more worryingly, allowing the execution of arbitrary code<\/a>.<\/p>\n

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

Below is a conceptual example of how this vulnerability might be exploited using a HTTP POST request<\/a> with specifically crafted malicious data:<\/p>\n

POST \/goform\/formWlanMP HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\nateFunc=OVERFLOW_DATA&ateGain=OVERFLOW_DATA&ateTxCount=OVERFLOW_DATA&ateChan=OVERFLOW_DATA&ateRate=OVERFLOW_DATA&ateMacID=OVERFLOW_DATA&e2pTxPower1=OVERFLOW_DATA&e2pTxPower2=OVERFLOW_DATA&e2pTxPower3=OVERFLOW_DATA&e2pTxPower4=OVERFLOW_DATA&e2pTxPower5=OVERFLOW_DATA&e2pTxPower6=OVERFLOW_DATA&e2pTxPower7=OVERFLOW_DATA&e2pTx2Power1=OVERFLOW_DATA&e2pTx2Power2=OVERFLOW_DATA&e2pTx2Power3=OVERFLOW_DATA&e2pTx2Power4=OVERFLOW_DATA&e2pTx2Power5=OVERFLOW_DATA&e2pTx2Power6=OVERFLOW_DATA&e2pTx2Power7=OVERFLOW_DATA&ateTxFreqOffset=OVERFLOW_DATA&ateMode=OVERFLOW_DATA&ateBW=OVERFLOW_DATA&ateAntenna=OVERFLOW_DATA&e2pTxFreqOffset=OVERFLOW_DATA&e2pTxPwDeltaB=OVERFLOW_DATA&e2pTxPwDeltaG=OVERFLOW_DATA&e2pTxPwDeltaMix=OVERFLOW_DATA&e2pTxPwDeltaN=OVERFLOW_DATA&readE2P=OVERFLOW_DATA<\/code><\/pre>\n
In this example, “OVERFLOW_DATA” would be replaced with the data intended to overflow the buffer<\/a>.<\/p>\n
Mitigation<\/strong><\/p>\n
As of now, the vendor has not provided any patches for this vulnerability. As a temporary mitigation, it is recommended to implement a Web Application Firewall (WAF) or Intrusion Detection System (IDS) that can detect and block attempts to exploit this vulnerability<\/a>. Users are encouraged to keep a close watch on any updates from the vendor and apply patches as soon as they become available.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview A critical vulnerability has been identified in the Belkin F9K1122 version 1.00.33. This vulnerability, tracked as CVE-2025-7091, can potentially lead to system compromise or data leakage. It impacts the function formWlanMP of the file \/goform\/formWlanMP of the component webs. This vulnerability matters because it can be exploited remotely, and the exploit details have been […]<\/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-59295","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