CVE-2026-1411
Beetel 777VR1 UART access control
- State
- Published
- Severity
- 5.4 Medium
- Published
- Jan 26, 2026
- Updated
- Feb 23, 2026
- Reserved
- Jan 25, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.4 Medium | 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 | VulDB |
| 3.1 | 6.1 Medium | 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 | VulDB |
| 3.0 | 6.1 Medium | 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 | VulDB |
| 2.0 | 5.9 Medium | AV:L/AC:H/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
777VR1Beetel |
|
References
- VDB-342800 | Beetel 777VR1 UART access controlvdb-entrytechnical-description
- VDB-342800 | CTI Indicators (IOB, IOC, TTP)signaturepermissions-required
- Submit #740674 | Beetel Beetel 777VR1 Broadband Router Firmware Versions: V01.00.09 / V01.00.09_55 CWE-284 — Improper Access Controlthird-party-advisory
- https://gist.github.com/raghav20232023/ea6adcd6d1eca35683570a1094164bd3exploit
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