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CVE-2026-50299 Microsoft CVE debrief

CVE-2026-50299 is an integer overflow or wraparound vulnerability in Windows Storage Spaces Direct. An unauthorized attacker could exploit this vulnerability with a physical attack to execute code. Microsoft has released a patch for this vulnerability. The vulnerability exists due to improper handling of integer values in Windows Storage Spaces Direct, allowing an attacker to execute code with a physical attack. System administrators and users of Windows Storage Spaces Direct should be aware of this vulnerability and take steps to mitigate it.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
MEDIUM 6.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-14
Original CVE updated
2026-07-22
Advisory published
2026-07-14
Advisory updated
2026-07-22

Who should care

System administrators and users of Windows Storage Spaces Direct should be aware of this vulnerability and take steps to mitigate it. This includes applying the patch released by Microsoft, reviewing and updating Windows Storage Spaces Direct configurations, and monitoring system logs for suspicious activity.

Technical summary

The vulnerability exists in Windows Storage Spaces Direct and allows an attacker to execute code with a physical attack due to an integer overflow or wraparound. The CVSS score for this vulnerability is 6.8, indicating a medium severity. This vulnerability can be mitigated by applying the patch released by Microsoft and reviewing and updating Windows Storage Spaces Direct configurations.

Defensive priority

Medium priority

Recommended defensive actions

  • Apply the patch released by Microsoft
  • Review and update Windows Storage Spaces Direct configurations
  • Monitor system logs for suspicious activity
  • Review compensating controls for exposed systems while remediation is scheduled and verified
  • Check relevant monitoring, detection, and logs for exposed assets that need extra review

Evidence notes

The CVE record was published on 2026-07-14T17:16:58.477Z and last modified on 2026-07-16T14:52:07.877Z. The NVD entry is currently Analyzed. This vulnerability affects Windows Storage Spaces Direct and has a CVSS score of 6.8, indicating medium severity. Microsoft has released a patch for this vulnerability. Evidence limits suggest that additional information may be available from Microsoft or other sources, but verification is needed.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-50299 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-50299

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

  • CVE-2026-50299 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-50299

    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.