CVE-2026-50407

HighCVSS 7.8/10Last modified Jul 20, 2026

Description

Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to elevate privileges locally.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-122

Affected software

No affected versions have been published.

Timeline

Published
Jul 14, 2026
Last modified
Jul 20, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-504085.5Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.CVE-2026-504095.5Exposure of sensitive information to an unauthorized actor in Windows Overlay Filter allows an authorized attacker to disclose information lCVE-2026-50414.7A vulnerability was identified in code-projects Chamber of Commerce Membership Management System 1.0. Impacted is the function fwrite of theCVE-2026-504107.0Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.CVE-2026-504117.5Stack-based buffer overflow in Active Directory Federation Services (AD FS) allows an unauthorized attacker to deny service over a network.CVE-2026-504127.8Stack-based buffer overflow in Windows NTFS allows an authorized attacker to elevate privileges locally.CVE-2026-504137.8Use after free in Windows Runtime allows an authorized attacker to elevate privileges locally.CVE-2026-504148.8Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Media allows an authorized attacker tCVE-2026-504157.5Exposure of sensitive information to an unauthorized actor in Windows Media allows an unauthorized attacker to disclose information over a nCVE-2026-504163.3Exposure of sensitive information to an unauthorized actor in Windows Win32K allows an authorized attacker to disclose information locally.CVE-2026-504177.8Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.CVE-2026-504186.1Improper access control in Windows System allows an unauthorized attacker to bypass a security feature locally.
CVE-2026-50407: High severity, CVSS 7.8 | Vulnix