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CVE-2026-49168 Microsoft CVE debrief

CVE-2026-49168 is an integer overflow or wraparound vulnerability in Windows Storage Spaces Direct. The vulnerability allows an unauthorized attacker to elevate privileges with a physical attack. Microsoft has released a patch for this vulnerability. System administrators and users of Windows Storage Spaces Direct should be aware of this vulnerability and apply the patch to prevent potential privilege escalation attacks. The vulnerability has a CVSS score of 6.8, indicating medium severity.

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 apply the patch to prevent potential privilege escalation attacks. This vulnerability has a medium severity and requires attention from those responsible for maintaining Windows Storage Spaces Direct systems.

Technical summary

The vulnerability is caused by an integer overflow or wraparound in Windows Storage Spaces Direct. This could allow an attacker to elevate privileges with a physical attack. The CVSS score for this vulnerability is 6.8, indicating a medium severity. A patch is available from Microsoft to fix the vulnerability.

Defensive priority

Medium priority should be given to patching this vulnerability, as it could allow an attacker to elevate privileges with a physical attack.

Recommended defensive actions

  • Apply the patch released by Microsoft to fix the vulnerability.
  • Ensure that Windows Storage Spaces Direct is properly configured and monitored.
  • Limit physical access to sensitive systems.
  • Regularly review and update system configurations.
  • Review compensating controls for exposed systems while remediation is scheduled and verified.

Evidence notes

The CVE record was published on 2026-07-14T17:16:51.633Z and was last modified on 2026-07-16T16:14:44.430Z. The NVD entry is currently Analyzed. The 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 is limited to CVE and NVD details.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-49168 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-49168

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

  • CVE-2026-49168 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-49168

    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.