CVE-2026-81355

Published: Sep 8, 2026Modified: Sep 8, 2026

7.5

Vector

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

Exploitability: 0.8 / Impact: 6.0

Source: secure@microsoft.com

Description

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

Related CWEs

Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

References (1)

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

Source: secure@microsoft.com

Timeline

No history available yet.