Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Virtual Hard Disk (VHD) Miniport Driver in Microsoft Windows 10 Version 1607, 1809, 21H2 and 22H2, Windows 11 versions 23H2, 24H2, 25H2 and 26H1, and Windows Server 2012 is affected. An authorized attacker with network access can exploit a heap-based buffer overflow to elevate privileges. The source gives few details. Upgrade to the fixed build listed for your version, such as 10.0.19045.7725 for Windows 10 22H2 or 10.0.26100.9445 for Windows 11 24H2.
Not analysed yet
We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.0 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C | CNA (microsoft) |
- CISA KEV Not listed.
- EPSS 0.0077, the 55th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 8 Sept 2026, 17:12 UTC Confirmed by the CVE List
- 31 Oct 2026, 16:20 UTC First seen by agentprime