Microsoft November 2026 patches fix 1095 flaws, one exploited
Only CVE-2026-124194, an Outlook spoofing bug scored 6.5, is exploited; 48 of 64 critical issues are remote code execution.
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CVE-2026-113865
Local TOCTOU privilege escalation in Windows Hyper-V
- CVSS 3.1
- 7.8 high
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
A time-of-check time-of-use race in Windows Hyper-V lets an authorized local attacker elevate privileges. The attacker must already have low privileges on the host; no user interaction is required, but the race is hard to win. Successful exploitation yields high impact on confidentiality, integrity, and availability beyond the vulnerable component. Microsoft has not listed affected builds.
What to do: Apply Microsoft's update for CVE-2026-113865. No fixed version or workaround is stated.
| Product | Affected |
|---|---|
| Microsoft Windows Hyper-V | — |
Estimated exposure
No basis for an estimate.
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
Description · NVD
Time-of-check time-of-use (toctou) race condition in Windows Hyper-V allows an authorized attacker to elevate privileges locally.
- Weakness
- CWE-367
- Vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H