{"id":69104,"date":"2025-08-31T13:11:37","date_gmt":"2025-08-31T13:11:37","guid":{"rendered":""},"modified":"2025-09-06T17:37:48","modified_gmt":"2025-09-06T23:37:48","slug":"cve-2025-9253-stack-based-buffer-overflow-on-linksys-wi-fi-range-extenders-leading-to-potential-system-compromise","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-9253-stack-based-buffer-overflow-on-linksys-wi-fi-range-extenders-leading-to-potential-system-compromise\/","title":{"rendered":"CVE-2025-9253: Stack-based Buffer Overflow on Linksys Wi-Fi Range Extenders Leading to Potential System Compromise<\/strong>"},"content":{"rendered":"

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

A critical security vulnerability, designated as CVE-2025-9253, has been identified in a range of Linksys Wi-Fi range extenders. This issue has been found to affect RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000 models with specific firmware versions. The vulnerability resides in the RP_doSpecifySiteSurvey function of the \/goform\/RP_doSpecifySiteSurvey file<\/a>. An attacker can exploit this vulnerability and compromise the system or cause data<\/a> leakage, posing significant risks for users.
\nThe breach is particularly dangerous because the attack can be initiated remotely, and the exploit has been publicly disclosed. Despite being informed about this vulnerability, the vendor has remained silent, leaving the devices exposed to potential<\/a> attacks.<\/p>\n

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

CVE ID: CVE-2025-9253
\nSeverity: High (8.8\/10)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise<\/a>, data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

Linksys RE6250 | 1.0.013.001, 1.0.04.001, 1.0.04.002
\nLinksys RE6300 | 1.0.013.001, 1.0.04.001, 1.0.04.002
\nLinksys RE6350 | 1.0.013.001, 1.0.04.001, 1.0.04.002
\nLinksys RE6500 | 1.0.013.001, 1.0.04.001, 1.0.04.002
\nLinksys RE7000 | 1.0.013.001, 1.0.04.001, 1.0.04.002, 1.1.05.003
\nLinksys RE9000 | 1.0.013.001, 1.0.04.001, 1.0.04.002, 1.1.05.003, 1.2.07.001<\/p>\n

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

The vulnerability stems from the improper<\/a> handling of the ‘ssidhex’ argument in the function RP_doSpecifySiteSurvey. When an attacker manipulates ‘ssidhex’ and sends an overly long argument, it overflows the stack-based buffer<\/a>. This overflow can lead<\/a> to arbitrary code execution, granting the attacker control over the system.<\/p>\n

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

The following is a conceptual example of how an attacker might exploit the vulnerability. This is not a working exploit but an illustration of the vulnerability<\/a>:<\/p>\n

POST \/goform\/RP_doSpecifySiteSurvey HTTP\/1.1\nHost: target_linksys_device_ip\nContent-Type: application\/x-www-form-urlencoded\nssidhex=41414141...[A*5000]<\/code><\/pre>\n
In this example, the ‘ssidhex’ argument is filled with a large number of ‘A’ characters (41 in hexadecimal), causing a buffer overflow<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview A critical security vulnerability, designated as CVE-2025-9253, has been identified in a range of Linksys Wi-Fi range extenders. This issue has been found to affect RE6250, RE6300, RE6350, RE6500, RE7000, and RE9000 models with specific firmware versions. The vulnerability resides in the RP_doSpecifySiteSurvey function of the \/goform\/RP_doSpecifySiteSurvey file. An attacker can exploit this vulnerability […]<\/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-69104","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