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CWE

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CVE-2026-1409

Published: Jan 25, 2026

Modified: Feb 23, 2026

PUBLISHED

CVSS v3.1

2.0

LOW

Description

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.

Vendor	Product	Versions
Beetel	777VR1	affected `01.00.09` affected `01.00.09_55`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R

Attack Vector

Physical

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

References

VDB-342798 | Beetel 777VR1 UART excessive authentication

vdb-entry

technical-description

VDB-342798 | CTI Indicators (IOB, IOC, TTP)

signature

permissions-required

Submit #739399 | Beetel Beetel 777VR1 Broadband Router Firmware Version: V01.00.09 / V01.00.09_55 CWE-307 Improper Restriction - Excessive Authentication Attempts

third-party-advisory

https://gist.github.com/raghav20232023/19900b427445adf37f64ae953611bfce

exploit

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