Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Windows NTFS is affected in multiple Windows 10, Windows 11 and Windows Server 2012 builds. An authorized attacker with local access can exploit an integer overflow or wraparound to elevate privileges. Upgrade to the fixed build listed for your version, such as 10.0.26100.9445 for Windows 11 Version 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 |
|---|---|---|---|---|
| 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, 17:10 UTC Confirmed by the CVE List
- 31 Oct 2026, 16:20 UTC First seen by agentprime