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PatchSiren cyber security CVE debrief

CVE-2026-50244 Naxclow CVE debrief

The Naxclow platform has a vulnerability, tracked as CVE-2026-50244, which exposes a registration endpoint that accepts signed requests with a batch prefix and an arbitrary caller-supplied account identifier. This endpoint does not validate any ownership relationship, allowing callers to measure and enumerate the active device space by minting new sequential device identifiers and retrieving the current high-water counter value for the batch. This behavior enables precise fleet enumeration.

Vendor
Naxclow
Product
Smart Doorbell X3
CVSS
MEDIUM 5.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-11
Original CVE updated
2026-06-11
Advisory published
2026-06-11
Advisory updated
2026-06-11

Who should care

Organizations using the Naxclow platform should be aware of this vulnerability, as it could allow attackers to enumerate their device fleets.

Technical summary

The vulnerability has a CVSS score of 6.9 and is classified as medium severity. It can be exploited over the network with low attack complexity and no privileges required.

Defensive priority

High

Recommended defensive actions

  • Review and update configurations to restrict access to the registration endpoint.
  • Implement proper validation of ownership relationships for account identifiers.
  • Monitor for suspicious activity related to device enumeration.

Evidence notes

The CVE record and details can be found at [cve-org]. Additional information is available from [nvd].

Sources and references

Verified primary and authoritative sources

  • CVE-2026-50244 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-50244

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-50244 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-50244

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.