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CVE-2026-50388 Microsoft CVE debrief

CVE-2026-50388 is an out-of-bounds read vulnerability in Windows NTFS, allowing an unauthorized attacker to execute code locally. The vulnerability has a CVSS score of 7.8 and is classified as HIGH severity. Microsoft has released a patch for this vulnerability. The vulnerability affects Windows operating systems and has been assigned a CVSS score of 7.8. System administrators and users should be aware of this vulnerability and take necessary precautions to protect their systems.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
HIGH 7.8
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

System administrators and users of Windows operating systems should be aware of this vulnerability and take necessary precautions to protect their systems. This includes reviewing the official CVE record and NVD entry, applying the patch released by Microsoft, and ensuring that Windows operating systems are up-to-date.

Technical summary

The vulnerability is caused by an out-of-bounds read in the Windows NTFS component. This allows an unauthorized attacker to execute code locally. The vulnerability has been assigned a CVSS score of 7.8 and is classified as HIGH severity. The affected product is Windows NTFS. Defenders should apply the patch released by Microsoft and ensure that Windows operating systems are up-to-date.

Defensive priority

High

Recommended defensive actions

  • Apply the patch released by Microsoft
  • Ensure that Windows operating systems are up-to-date
  • Monitor systems 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 2026-07-14T18:17:40.580Z and was last modified on 2026-07-20T17:44:29.857Z. The NVD entry is currently Analyzed. The vulnerability has been reported in Windows NTFS and has a CVSS score of 7.8. Microsoft has released a patch for this vulnerability. However, the exact impact and affected scope are still being verified. Defenders should review the official CVE record and NVD entry for further details.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-14T18:17:40.580Z and has not been modified since then. The NVD entry is currently Analyzed.