Integer overflow in Microsoft Windows 10 Version 1607
CVE-2026-72947
Integer underflow (wrap or wraparound) in Windows File History Service allows an authorized attacker to elevate privileges locally.
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.
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 23h2
- 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)
Weakness classification (CWE)
References
- secure@microsoft.com (vendor-advisory, patch)
Frequently asked questions
- What is CVE-2026-72947?
- CVE-2026-72947 is a medium-severity vulnerability in Microsoft Windows 10 Version 1607, classified under Integer Underflow. CVSS score: 6.4/10. Published 2026-09-08.
- How severe is CVE-2026-72947?
- Medium severity. CVSS v3 base score is 6.4 out of 10.