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CVE-2026-42947— Naxclow IoT Platform Authorization bypass through User-Controlled key

Quick assessment

Affected
Naxclow Smart Doorbell X3
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Naxclow Smart Doorbell X3是Naxclow的一个智能家居视频门铃。 Naxclow Smart Doorbell X3存在授权问题漏洞，该漏洞源于平台的上线工作流中允许攻击者重放确认-绑定序列，将设备静默重新分配给任意账户。

CVSS 8.8 · High EPSS 0.44% · P36

Possible ATT&CK Techniques 1 AI

T1199 · Trusted Relationship

Affected Version Matrix 4

VendorProduct Version RangeStatus
Naxclow ix cam All affected
Naxclow Smart Doorbell X3 All affected
Naxclow V720 All affected
Naxclow X Smart Home All affected
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I. Basic Information for CVE-2026-42947

Vulnerability Information
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Vulnerability Title
Naxclow IoT Platform Authorization bypass through User-Controlled key
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw in Naxclow's platform’s onboarding workflow allows an attacker to replay a confirm-then-bind sequence to silently reassign a device to an arbitrary account. Because the affected endpoints validate request signatures but do not confirm legitimate ownership, an attacker with any account can take over a device without user interaction while the device remains online and unaware.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
Naxclow Smart Doorbell X3 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Naxclow Smart Doorbell X3是Naxclow的一个智能家居视频门铃。 Naxclow Smart Doorbell X3存在授权问题漏洞，该漏洞源于平台的上线工作流中允许攻击者重放确认-绑定序列，将设备静默重新分配给任意账户。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Naxclow Smart Doorbell X3 All -
Naxclow X Smart Home All -
Naxclow V720 All -
Naxclow ix cam All -

II. Public POCs for CVE-2026-42947

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III. Intelligence Information for CVE-2026-42947

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Vendor Advisories for CVE-2026-42947 (1)

Same Patch Batch · Naxclow · 2026-06-12 · 7 CVEs total

CVE-2026-28742 9.8 CRITICAL Naxclow IoT Platform Use of hard-coded cryptographic key
CVE-2026-50101 8.1 HIGH Naxclow IoT Platform Not using password aging
CVE-2026-50108 7.5 HIGH Naxclow IoT Platform Missing Authorization
CVE-2026-42932 5.3 MEDIUM Naxclow IoT Platform Generation of Predictable Numbers or Identifiers
CVE-2026-50244 5.3 MEDIUM Naxclow IoT Platform Missing Authorization
CVE-2026-50099 4.6 MEDIUM Naxclow IoT Platform Insertion of sensitive information into Externally-Accessible file or

IV. Related Vulnerabilities

Same product: Smart Doorbell X3
Same vendor: Naxclow
Same weakness: CWE-639

V. Comments for CVE-2026-42947

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