CVE-2026-1409 LOW

CVE-2026-1409: Beetel 777VR1 UART excessive authentication

Vendor Beetel
Product 777VR1
Weakness CWE-307 · Brute force
Published January 25, 2026
Last update February 23, 2026

CVSS base score

1.0/10
Attack vector Physical
Attack complexity High
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A security vulnerability has been detected in Beetel 777VR1 up to 01.00.09/01.00.09_55. This issue affects some unknown processing of the component UART Interface. The manipulation leads to improper restriction of excessive authentication attempts. It is possible to launch the attack on the physical device. The attack's complexity is rated as high. The exploitability is assessed as difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Key dates

02Disclosure timeline

January 25, 2026 CVE published
February 23, 2026 Record updated