CVE-2025-2771: router firmware Auth Bypass (CVSS 5.3)

Description

BEC Technologies Multiple Routers Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of BEC Technologies routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web-based user interface. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-25894.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness Type (CWE)

CWE-287 Improper Authentication

Affected Products

Vendor	Product	Versions
bectechnologies	router_firmware	All

References

Other References

https://www.zerodayinitiative.com/advisories/ZDI-25-184/

Frequently Asked Questions

What is CVE-2025-2771? +

BEC Technologies Multiple Routers Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of BEC Technologies routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the web-based user interface. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-25894. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-2771? +

CVE-2025-2771 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-2771? +

CVE-2025-2771 affects products from bectechnologies, specifically: router_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-2771? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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