{"id":59687,"date":"2025-07-27T18:34:13","date_gmt":"2025-07-27T18:34:13","guid":{"rendered":""},"modified":"2025-08-08T12:02:23","modified_gmt":"2025-08-08T18:02:23","slug":"cve-2025-44654-unauthorized-access-and-privilege-escalation-vulnerability-in-linksys-e2500","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-44654-unauthorized-access-and-privilege-escalation-vulnerability-in-linksys-e2500\/","title":{"rendered":"CVE-2025-44654: Unauthorized Access and Privilege Escalation Vulnerability in Linksys E2500<\/strong>"},"content":{"rendered":"

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

CVE-2025-44654 is a critical security vulnerability found in Linksys E2500 version 3.0.04.002. This vulnerability, if left unpatched, could potentially lead to unauthorized access to system files, privilege escalation, and further internal network attacks. Given the critical nature of this vulnerability<\/a>, it is crucial for users and administrators of the affected Linksys E2500 routers to understand the implications of this vulnerability and implement the necessary mitigations.
\nThe severity and wide-reaching impact of this vulnerability<\/a>, combined with the high volume of Linksys E2500 devices deployed globally, makes CVE-2025-44654 a matter of significant concern in the cybersecurity community.<\/p>\n

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

CVE ID: CVE-2025-44654
\nSeverity: Critical (CVSS: 9.8)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Unauthorized access to system files<\/a>, privilege escalation, potential for further internal network attacks.<\/p>\n

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

Product | Affected Versions<\/p>\n

Linksys E2500 | 3.0.04.002<\/p>\n

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

The vulnerability stems from an incorrect configuration in the vsftpd file<\/a>, where the ‘chroot_local_user’ option is enabled. This allows a potential attacker to escape from the isolated environment, giving them unauthorized access<\/a> to the filesystem. With access to system files<\/a>, an attacker could escalate their privileges, potentially gaining full control of the system.<\/p>\n

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

Here is a conceptual example of how the vulnerability might be exploited. This is not a real exploit, but a simplified example to illustrate the principles involved.<\/p>\n

# Connect to the FTP server\nftp target.example.com\n# Login with any user\nftp> user ftpuser\nftp> pass ftpuser\n# Change to the root directory\nftp> cd \/\n# Now the attacker has access to the entire filesystem\nftp> ls<\/code><\/pre>\n
This simple example demonstrates how an attacker could potentially gain unauthorized access to the system files through the vulnerability<\/a>. In the real world, an attacker would likely use more sophisticated methods to escalate their privileges<\/a> and perform further malicious actions.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview CVE-2025-44654 is a critical security vulnerability found in Linksys E2500 version 3.0.04.002. This vulnerability, if left unpatched, could potentially lead to unauthorized access to system files, privilege escalation, and further internal network attacks. Given the critical nature of this vulnerability, it is crucial for users and administrators of the affected Linksys E2500 routers to […]<\/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":[76],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-59687","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-privilege-escalation"],"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