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PatchSiren cyber security CVE debrief

CVE-2026-45642 Microsoft CVE debrief

CVE-2026-45642 is a LOW-severity vulnerability in Microsoft Azure Attestation service and Device Health Attestation Service. It allows an authorized attacker to perform spoofing with a physical attack due to improper input validation. The vulnerability was published on 2026-06-09 and modified on 2026-06-11.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
LOW 3.9
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-11
Advisory published
2026-06-09
Advisory updated
2026-06-11

Who should care

Administrators and users of Microsoft Azure Attestation service and Device Health Attestation Service should be aware of this vulnerability and take necessary actions to mitigate it.

Technical summary

The vulnerability has a CVSS score of 3.9 and a CVSS severity of LOW. The CVSS vector is CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N. The weakness is CWE-20.

Defensive priority

This vulnerability requires attention, but its LOW severity and specific attack requirements suggest that it may not be a high priority for immediate action.

Recommended defensive actions

  • Apply patches or updates provided by Microsoft to fix the vulnerability.
  • Review and update configurations for Microsoft Azure Attestation service and Device Health Attestation Service to ensure proper input validation.
  • Monitor systems for potential spoofing attempts.

Evidence notes

The CVE record and NVD detail pages provide additional information about the vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-45642 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-45642

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

  • CVE-2026-45642 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-45642

    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.