CVE intelligence and bounded remediation

CVE-2023-27746 — Blackvue Dr750-2Ch Lte Firmware security vulnerability

Critical CVSS 9.8

BlackVue DR750-2CH LTE v.1.012_2022.10.26 was discovered to contain a weak default passphrase which can be easily cracked via a brute force attack if the WPA2 handshake is intercepted.

Severity
Critical
CVSS
9.8 (3.1)
Published
2023-04-13
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-307

Affected products

  • blackvue / dr750-2ch_lte_firmware / 1.012_2022.10.26
  • blackvue / dr750-2ch_ir_lte_firmware / 1.012_2022.10.26

Matched remediation archetype

Authentication bypass and missing authentication

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Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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