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CVE-2026-50372 Microsoft CVE debrief

A buffer over-read vulnerability exists in Windows Redirected Drive Buffering, which could allow an authorized attacker to elevate privileges locally. The vulnerability has a CVSS score of 7 and is classified as HIGH severity. This vulnerability affects Windows operating systems and has a high impact on system security. System administrators and users should be aware of this vulnerability and take necessary precautions to mitigate the risk. The CVE record was published on 2026-07-14T18:17:38.180Z and was last modified on 2026-07-20T14:48:21.157Z.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
HIGH 7
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 operating systems should be aware of this vulnerability and take necessary precautions to mitigate the risk. This includes reviewing and updating Windows operating systems to ensure they are running with the latest security updates and implementing compensating controls to detect and respond to potential exploitation attempts.

Technical summary

The vulnerability is caused by a buffer over-read in Windows Redirected Drive Buffering. An authorized attacker could exploit this vulnerability to elevate privileges locally. The CVSS vector for this vulnerability is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. The vulnerability affects Windows operating systems and has a high impact on system security.

Defensive priority

High priority should be given to patching and mitigating this vulnerability, as it could allow an authorized attacker to elevate privileges locally.

Recommended defensive actions

  • Apply the patch provided by Microsoft
  • Review and update Windows operating systems to ensure they are running with the latest security updates
  • Implement compensating controls, such as monitoring and exception tracking, to detect and respond to potential exploitation attempts
  • Review relevant monitoring, detection, and logs for exposed assets that need extra review
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record was published on 2026-07-14T18:17:38.180Z and was last modified on 2026-07-20T14:48:21.157Z. The NVD entry is currently Analyzed. The vulnerability has a CVSS score of 7 and is classified as HIGH severity. The buffer over-read vulnerability exists in Windows Redirected Drive Buffering, which could allow an authorized attacker to elevate privileges locally. Evidence is limited to CVE and NVD information.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-50372 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-50372

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

  • CVE-2026-50372 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-50372

    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.