Heap-based buffer overflow in Windows NTFS allows an authorized attacker to execute code locally.
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20922
https://www.tenable.com/blog/microsofts-january-2026-patch-tuesday-addresses-113-cves-cve-2026-20805
Source: Mitre, NVD
Published: 2026-01-13
Updated: 2026-01-15
Base Score: 6.8
Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
Severity: Medium
Base Score: 7.8
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity: High
EPSS: 0.00044
