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CVE-2026-50375 Microsoft CVE debrief

A heap-based buffer overflow vulnerability exists in Windows DirectX, which could allow an authorized attacker to elevate privileges locally. The vulnerability has a CVSS score of 6.3 and a severity of MEDIUM. This type of vulnerability can be used to gain elevated privileges on a system, potentially allowing an attacker to execute arbitrary code or access sensitive data. System administrators and users of Windows operating systems should be aware of this vulnerability and take necessary precautions to mitigate it.

Vendor
Microsoft
Product
Windows 10 Version 1809
CVSS
MEDIUM 6.3
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 it. This includes reviewing official advisories and CVE records, applying patches or updates, and implementing compensating controls. Additionally, security teams and vulnerability management teams should review the vulnerability and assess the potential impact on their systems.

Technical summary

The vulnerability is caused by a heap-based buffer overflow in Windows DirectX. An authorized attacker could exploit this vulnerability to elevate privileges locally. The vulnerability has been assigned a CVSS score of 6.3 and a severity of MEDIUM. The affected product is Windows DirectX, and the vulnerability can be exploited by an authorized attacker.

Defensive priority

Medium

Recommended defensive actions

  • Apply patches or updates provided by Microsoft to fix the vulnerability.
  • Implement compensating controls, such as access controls and monitoring, to reduce the attack surface.
  • Conduct regular vulnerability assessments and penetration testing to identify and address potential vulnerabilities.
  • 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 vulnerability is based on information from the NVD and CVE databases. The CVSS score and severity are based on the CVSS v3.1 scoring system. The affected product is Windows DirectX. The vulnerability has a CVSS score of 6.3 and a severity of MEDIUM. There are no known affected scope or additional details. Defenders should verify official advisories and CVE records for more information.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-50375 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-50375

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

  • CVE-2026-50375 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-50375

    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.