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CVE-2026-50471: Windows NTFS Remote Code Execution Vulnerability

highCVSS 7.8CVE-2026-50471
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.

CSIRTS triage

vendor: Microsoftproduct: WindowsRemote code execution
What
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to execute code locally.
Who is affected
Unauthorized users of Windows with the affected NTFS.
Urgency
Remediation is high urgency as it allows for remote code execution and has a high severity rating.
Action
Apply the latest security patch for Windows.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
high — CVSS 7.8
Published
2026-07-14
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50471

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-50471coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Windows NTFS Remote

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from Microsoft Security Response Center