Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Microsoft Windows 10 (versions 1607, 1809, 21H2, 22H2), Windows 11 (23H2, 24H2, 25H2, 26H1), and Windows Server 2012 are affected by a heap-based buffer overflow in Remote Desktop Services. An authorized attacker can exploit it over a network to execute code. The source gives few details beyond this. Upgrade to the fixed builds listed for each affected version: 10.0.14393.9512 or later for 1607, 10.0.17763.9245 or later for 1809, and so on, or Windows Server 2012 build 6.2.9200.26349 or later.
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 |
|---|---|---|---|---|
| 7.5 | High | 3.1 | CVSS:3.1/AV:N/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 0.0066, the 52nd percentile, on 10 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