{"id":36615,"date":"2025-05-09T09:53:22","date_gmt":"2025-05-09T09:53:22","guid":{"rendered":""},"modified":"2025-09-15T00:13:00","modified_gmt":"2025-09-15T06:13:00","slug":"cve-2025-46627-weak-credentials-vulnerability-in-tenda-rx2-pro","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-46627-weak-credentials-vulnerability-in-tenda-rx2-pro\/","title":{"rendered":"CVE-2025-46627: Weak Credentials Vulnerability in Tenda RX2 Pro<\/strong>"},"content":{"rendered":"

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

The Common Vulnerabilities and Exposures (CVE) system has identified a flaw, known as CVE-2025-46627, that presents a significant risk to users of the Tenda RX2 Pro with version 16.03.30.14. This flaw arises from the use of weak credentials, which can potentially allow an unauthenticated attacker to gain access to the telnet service. The significance of this vulnerability lies in its potential to compromise the system<\/a> or lead to data leakage, thereby posing a substantial threat to the privacy and security of users.
\nThis vulnerability is specifically problematic because the root password<\/a>, which an attacker may calculate, is based on easily obtainable device information – the last two digits or octets of the MAC address. As such, anyone with access to this information could potentially exploit this vulnerability<\/a>, compromising user data and system integrity.<\/p>\n

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

CVE ID: CVE-2025-46627
\nSeverity: High (8.2 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise and potential<\/a> data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

Tenda RX2<\/a> Pro | 16.03.30.14<\/p>\n

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

The vulnerability arises from the use of a weak<\/a> authentication mechanism in the Tenda RX2 Pro. Specifically, the device relies on the last two digits or octets of the MAC address to generate the root password. An attacker can easily obtain this information, calculate the root password, and authenticate to the telnet service<\/a>. Since this does not require any user interaction or special privileges<\/a>, it further escalates the risk posed by this vulnerability.<\/p>\n

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

An attacker could potentially exploit this vulnerability using a simple shell command<\/a> like the one below:<\/p>\n

telnet target_IP\nTrying target_IP...\nConnected to target_IP.\nEscape character is '^]'.\nlogin: root\npassword: {calculated_based_on_MAC_address}\n# Successful login<\/code><\/pre>\n
Here, the attacker simply needs to replace “target_IP” with the IP address of the target device and “{calculated_based_on_MAC_address}” with the password calculated based on the MAC address. Once the attacker has successfully logged in, they gain root access<\/a> and can perform any action on the device, leading to a potential system compromise and data leakage.
\nAs a measure to address this vulnerability<\/a>, users are advised to apply the vendor patch when it becomes available or use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The Common Vulnerabilities and Exposures (CVE) system has identified a flaw, known as CVE-2025-46627, that presents a significant risk to users of the Tenda RX2 Pro with version 16.03.30.14. This flaw arises from the use of weak credentials, which can potentially allow an unauthenticated attacker to gain access to the telnet service. The significance […]<\/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":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-36615","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"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