CVE-2026-28742 Naxclow IoT Platform Use of hard-coded cryptographic key
Attackers can forge valid signatures to impersonate devices and accounts due to a hard-coded cryptographic salt in Naxclow IoT firmware.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-28742?
CVE-2026-28742 is a critical vulnerability in Naxclow Smart Doorbell X3, published on 12 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-321
Which versions are affected by CVE-2026-28742?
How do I fix CVE-2026-28742?
No fix has been published for CVE-2026-28742 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-28742 being exploited?
There is no known exploitation of CVE-2026-28742 in the wild and no public exploit code.
Sources
Also known as GHSA-j3pq-62hg-9x25.