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PatchSiren cyber security CVE debrief

CVE-2026-50341 Microsoft CVE debrief

A buffer over-read vulnerability exists in Windows NTFS, allowing an authorized attacker to disclose information locally. The vulnerability has a CVSS score of 5.5 and a severity of MEDIUM. This issue is caused by improper handling of file system data, potentially allowing attackers with local access to read sensitive information from the system. Administrators should be aware of this vulnerability and take necessary precautions to prevent exploitation. The CVE record was published on 2026-07-14T18:17:33.740Z and was last modified on 2026-07-16T16:19:11.693Z.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-14
Original CVE updated
2026-07-20
Advisory published
2026-07-14
Advisory updated
2026-07-20

Who should care

Administrators and users of Windows systems should be aware of this vulnerability and take necessary precautions to prevent exploitation. This includes reviewing system configurations, applying patches or updates provided by the vendor, and monitoring system logs for suspicious activity. Additionally, security teams should prioritize patching and verifying compensating controls for exposed systems.

Technical summary

The vulnerability is caused by a buffer over-read in the Windows NTFS component. An authorized attacker can exploit this vulnerability to disclose information locally. The CVSS vector for this vulnerability is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. This issue is related to improper handling of file system data.

Defensive priority

Medium priority

Recommended defensive actions

  • Apply patches or updates provided by the vendor
  • Monitor system logs for suspicious activity
  • Implement compensating controls to limit access to sensitive data
  • Review system configurations to ensure secure settings
  • Verify compensating controls for exposed systems

Evidence notes

The CVE record was published on 2026-07-14T18:17:33.740Z and was last modified on 2026-07-16T16:19:11.693Z. The NVD entry is currently Awaiting Analysis. The vulnerability has a CVSS score of 5.5 and a severity of MEDIUM. The CVE record was sourced from nvd_modified.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-50341 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-50341

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

  • CVE-2026-50341 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-50341

    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.