CVE-2026-28742
criticalpriority · track · 0OT risk · elevatedEPSS 0.003 · 26 %ileEUUSEPSS · scored 2026-10-27
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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
No vendor fix yet; a mitigation is available.
- MitigationSmart Doorbell X3cisa_csaf_ot
Naxclow did not respond to CISA's attempts to coordinate these vulnerabilities. Users should contact Naxclow for more information.
- MitigationV720cisa_csaf_ot
Naxclow did not respond to CISA's attempts to coordinate these vulnerabilities. Users should contact Naxclow for more information.
- MitigationX Smart Homecisa_csaf_ot
Naxclow did not respond to CISA's attempts to coordinate these vulnerabilities. Users should contact Naxclow for more information.
- Mitigationix camcisa_csaf_ot
Naxclow did not respond to CISA's attempts to coordinate these vulnerabilities. Users should contact Naxclow for more information.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.2–9.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (12)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- ICSA-26-162-02Naxclow IoT Platform2026-06-11icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to impersonate devices, intercept or manipulate communications, harvest sensitive credentials at scale, or gain unauthorized access.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-162-02.jsoncnnvd
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-162-02cnnvd
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-162-02.jsonenisa_euvd
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-162-02enisa_euvd
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-162-02.jsonnvd
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-162-02nvd
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