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Vulnerabilities

CVE-2026-28742 | BDVDB-2026-339902 Detail

NaxclowSmart Doorbell X3

Description#

Naxclow devices use a uniform request-signing scheme based on a hard-coded, platform-wide salt embedded in every firmware image. Once this salt is recovered from any device, an attacker can generate valid signatures for arbitrary device or account operations due to the absence of per-device keys, server-side nonce tracking, or replay protections. Combined with the system’s use of plain HTTP for control-plane traffic, the construction enables broad request forgery and impersonation across the platform.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.

Weaknesses#

  • CWE-321 Use of hard-coded cryptographic key

References#

Exploit#

No public exploit known

History#

  1. Version 1Record published in the CVE List.