CVE-2026-28742

Naxclow IoT Platform Use of hard-coded cryptographic key

Published Jun 12, 2026 CVSS 4.0 · 9.2 Critical EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

Naxclow did not respond to CISA's attempts to coordinate these vulnerabilities. Users should contact Naxclow for more information.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Naxclow
Naxclow ix Cam
Naxclow smart Doorbell X3
Naxclow v720
Naxclow x Smart Home
Vendors & Products Naxclow
Naxclow ix Cam
Naxclow smart Doorbell X3
Naxclow v720
Naxclow x Smart Home
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Naxclow IoT Platform Use of hard-coded cryptographic key
Weaknesses CWE-321
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Jun 12, 2026, 7:02 PM
Reserved
Jun 8, 2026, 8:04 PM
Status
Deferred
Published
Jun 12, 2026, 7:16 PM
Modified
Jun 17, 2026, 10:28 AM