CVE-2026-69681 Virtual Hard Disk Miniport Driver - Privilege Escalation

Virtual Hard Disk (VHD) Miniport Driver contains a heap-based buffer overflow, letting authorized attackers elevate privileges over a network, exploit requires attacker to be authorized.

CVSS base score 8.0 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.77% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Published
8 September 2026
Updated
15 October 2026
Weakness
CWE-122

Vendor fix

Update to the latest version of the Virtual Hard Disk Miniport Driver.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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