Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Microsoft Windows 10 (versions 1809, 21H2 and 22H2), Windows 11 (versions 23H2, 24H2, 25H2 and 26H1) and Windows Server 2019 are affected by a use-after-free flaw in Windows Wireless Networking. An authorized local attacker can exploit it to elevate privileges. The fixed builds are 10.0.17763.9245 for Windows 10 1809 and Server 2019, 10.0.19044.7725 for 21H2, 10.0.19045.7725 for 22H2, 10.0.22631.7582 for 23H2, 10.0.26100.9445 for 24H2, 10.0.26200.9445 for 25H2 and 10.0.28000.2954 for 26H1, so upgrade to the matching build.
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 0.0026, the 18th 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