Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Microsoft Windows versions 10 (1607, 1809, 21H2, 22H2), 11 (23H2, 24H2, 25H2, 26H1), and Server 2012 are affected by a heap-based buffer overflow in the Volume Manager Driver. An authorized local attacker can exploit it to elevate privileges. The source gives few details. Upgrade to the fixed builds listed for each version, such as 10.0.22631.7582 for Windows 11 23H2 or 6.2.9200.26349 for Server 2012; no workaround is listed.
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 |
|---|---|---|---|---|
| 7.8 | High | 3.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C | CNA (microsoft) |
- CISA KEV Not listed.
- EPSS 0.0033, the 26th percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 8 Sept 2026, 17:11 UTC Confirmed by the CVE List
- 31 Oct 2026, 16:20 UTC First seen by agentprime