CVE-2026-42947

HIGH 8.8

Naxclow IoT Platform Authorization bypass through User-Controlled key

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-639
Vendor	naxclow
Product	smart doorbell x3
Published	Jun 12, 2026
Last Updated	Jun 12, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Naxclow / Smart Doorbell X3

All

Naxclow / X Smart Home

All

Naxclow / V720

All

Naxclow / ix cam

All

References

NVD ↗ CVE.org ↗ EPSS Data ↗

cisa.gov: https://www.cisa.gov/news-events/ics-advisories/icsa-26-162-02 github.com: https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-162-02.json

Credits

Temuri Takalandze reported this vulnerability to CISA.