Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Windows USB Audio Class driver (usbaudio.sys) on multiple Windows 10, Windows 11 and Windows Server 2012 builds contains a time-of-check time-of-use race condition. An authorized local attacker can exploit it to elevate privileges. The source gives few details beyond this. The CNA lists fixed builds for each affected version, so install the latest Windows update for your release to receive the fix.
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 |
|---|---|---|---|---|
| 7.0 | High | 3.1 | CVSS:3.1/AV:L/AC:H/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 0.0020, the 10th 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