CVE-2026-1411

Beetel 777VR1 UART access control

Published Jan 26, 2026 CVSS 4.0 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
A flaw has been found in Beetel 777VR1 up to 01.00.09/01.00.09_55. The affected element is an unknown function of the component UART Interface. This manipulation causes improper access controls. It is feasible to perform the attack on the physical device. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Beetel 777vr1 Firmware
CPEs cpe:2.3:h:beetel:777vr1:-:*:*:*:*:*:*:*
cpe:2.3:o:beetel:777vr1_firmware:*:*:*:*:*:*:*:*
Vendors & Products Beetel 777vr1 Firmware
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Beetel
Beetel 777vr1
Vendors & Products Beetel
Beetel 777vr1
Type Values Removed Values Added
Description A flaw has been found in Beetel 777VR1 up to 01.00.09/01.00.09_55. The affected element is an unknown function of the component UART Interface. This manipulation causes improper access controls. It is feasible to perform the attack on the physical device. The complexity of an attack is rather high. The exploitability is described as difficult. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Title Beetel 777VR1 UART access control
Weaknesses CWE-266
CWE-284
References
Metrics cvssV2_0

{'score': 5.9, 'vector': 'AV:L/AC:H/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 6.1, 'vector': 'CVSS:3.0/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 5.4, 'vector': 'CVSS:4.0/AV:P/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Feb 23, 2026, 8:54 AM
Reserved
Jan 25, 2026, 9:43 AM
Status
Analyzed
Published
Jan 26, 2026, 1:15 AM
Modified
Jun 17, 2026, 10:15 AM