Privilege escalation in Beetel 777vr1

CVE-2026-1411

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.

EPSS: 0.002 (8.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

  • cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
  • cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
  • cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
  • cna@vuldb.com (Exploit, Third Party Advisory, exploit, Mitigation)

Frequently asked questions

What is CVE-2026-1411?
CVE-2026-1411 is a medium-severity vulnerability in Beetel 777vr1, classified under Incorrect Privilege Assignment. CVSS score: 6.1/10. Published 2026-01-26.
How severe is CVE-2026-1411?
Medium severity. CVSS v3 base score is 6.1 out of 10.