CVE-2026-28742Network attack vector

Unauthenticated request forgery via platform-wide signing salt

Published Jun 12, 2026 · Updated Jun 12, 2026

Authentication bypass in all versions of the Naxclow IoT platform allows remote attackers to forge device and account operations. Each firmware image embeds the same signing salt, while the server accepts signatures without per-device keys, nonce tracking, or replay checks. Exploitation requires recovery of the shared salt; plain HTTP control traffic then permits unauthenticated impersonation with read, write, and service-interruption consequences.

CVSS severity9.2
Critical
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in all versions of the Naxclow IoT platform allows remote attackers to forge device and account operations. Each firmware image embeds the same signing salt, while the server accepts signatures without per-device keys, nonce tracking, or replay checks. Exploitation requires recovery of the shared salt; plain HTTP control traffic then permits unauthenticated impersonation with read, write, and service-interruption consequences.

The record

CVE
CVE-2026-28742
Published
Jun 12, 2026
Updated
Jun 12, 2026
Vendor
Guangzhou Qiangui IoT Technology Co., Ltd.
Product
V720
Classifications
CWE-321, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Guangzhou Qiangui IoT Technology Co., Ltd. · V720version=All
Guangzhou Qiangui IoT Technology Co., Ltd. · ix camversion=All
Guangzhou Qiangui IoT Technology Co., Ltd. · Smart Doorbell X3version=All
Guangzhou Qiangui IoT Technology Co., Ltd. · X Smart Homeversion=All

Published CVSS scores

9.8ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2ICS-CERTCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-321Use of Hard-coded Cryptographic Key
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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