{"id":86658,"date":"2026-03-11T03:51:49","date_gmt":"2026-03-11T03:51:49","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-44650-denial-of-service-vulnerability-in-netgear-r7000-and-eax80","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-44650-denial-of-service-vulnerability-in-netgear-r7000-and-eax80\/","title":{"rendered":"CVE-2025-44650: Denial of Service Vulnerability in Netgear R7000 and EAX80<\/strong>"},"content":{"rendered":"

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

The vulnerability, identified as CVE-2025-44650, affects Netgear R7000 and EAX80 routers. This vulnerability is due to the USERLIMIT_GLOBAL option setting in the bftpd.conf configuration file, which could potentially cause Denial of Service (DoS) attacks when unlimited users are connected. Considering the widespread usage of these devices, this vulnerability could have significant implications if exploited.<\/p>\n

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

CVE ID: CVE-2025-44650
\nSeverity: High (CVSS:7.5)
\nAttack Vector: Network
\nPrivileges Required: Low
\nUser Interaction: None
\nImpact: Denial of Service, potential system compromise or data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

Netgear R7000 | V1.3.1.64_10.1.36
\nNetgear EAX80 | V1.0.1.70_1.0.2<\/p>\n

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

The vulnerability exists due to a misconfiguration in the bftpd.conf file of the affected devices, where the USERLIMIT_GLOBAL option is set to 0. This allows unlimited simultaneous connections to the device, overloading its capabilities and causing a Denial of Service. Additionally, with a high volume of users, an attacker might be able to exploit this setting to gain unauthorized access or cause data leakage.<\/p>\n

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

The vulnerability does not involve a specific malicious payload but rather the exploitation of a misconfiguration. An attacker would attempt to connect multiple clients to the server concurrently, overloading the server and causing DoS. Conceptually, it might look like this:<\/p>\n

for i in {1..1000}\ndo\nnc target.example.com 21 &\ndone<\/code><\/pre>\n
This shell command attempts to create 1000 simultaneous connections to the FTP server on port 21, which could potentially cause a DoS given the misconfiguration.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
Users are advised to apply the patch provided by the vendor as soon as it becomes available. In the meantime, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can temporarily mitigate the issue by limiting the number of simultaneous connections.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The vulnerability, identified as CVE-2025-44650, affects Netgear R7000 and EAX80 routers. This vulnerability is due to the USERLIMIT_GLOBAL option setting in the bftpd.conf configuration file, which could potentially cause Denial of Service (DoS) attacks when unlimited users are connected. Considering the widespread usage of these devices, this vulnerability could have significant implications if exploited. […]<\/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":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86658","post","type-post","status-publish","format-standard","hentry"],"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