CVE-2026-81355

high

Description

Heap-based buffer overflow in Virtual Hard Disk (VHD) Miniport Driver allows an authorized attacker to execute code locally.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81355

Details

Source: Mitre, NVD

Published: 2026-09-08

Updated: 2026-09-08

Risk Information

CVSS v2

Base Score: 5.9

Vector: CVSS2#AV:L/AC:H/Au:M/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00212