CVE-2026-50668
Windows Resilient File System (ReFS) Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to elevate privileges with a physical attack.
Attack profile
How easy it is to exploit
- Attack vector
- Physical
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows Resilient File System (ReFS) Elevation of Privilege Vulnerability
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to elevate privileges with a physical attack.
- Record
CVE-2026-50668- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-122
- Updated
- 2026-11-02
EUVDEUVD-2026-44125
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to elevate privileges with a physical attack.
- Record
EUVD-2026-44125- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-mvf4-pj98-2r3v
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to elevate privileges...
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to elevate privileges with a physical attack.
- Record
GHSA-mvf4-pj98-2r3v- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
NVD
Heap-based buffer overflow in Windows NTFS allows an unauthorized attacker to elevate privileges with a physical attack.
- Record
CVE-2026-50668- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-122
- Updated
- 2026-11-02
Affected products
- microsoft windows 10 version 1607
- microsoft windows 10 version 1809
- microsoft windows 10 version 21h2
- microsoft windows 10 version 22h2
- microsoft windows 11 version 24h2
- microsoft windows 11 version 25h2
- microsoft windows 11 version 26h1
- microsoft windows server 2016
- microsoft windows server 2016 (server core installation)
- microsoft windows server 2019
- microsoft windows server 2019 (server core installation)
- microsoft windows server 2022
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-50668 is a medium vulnerability (CVSS 6.8) in Microsoft Windows 10 Version 1607, published July 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.44%, the 38th percentile. No source names a fixed version.