Microsoft November 2026 Patch Tuesday fixes 1093 CVEs, one exploited
Outlook spoofing CVE-2026-124194, used as a zero-day, leaks NTLMv2 hashes when a crafted Office file is opened.
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CVE-2026-109473
Use-after-free local privilege escalation in Windows Kernel
- CVSS 3.1
- 7.8 high
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
A use-after-free flaw in the Windows Kernel lets an already authorized local user raise privileges. No user interaction is required, but attack complexity is high. A successful attacker can gain high confidentiality, integrity, and availability impact, with scope beyond the vulnerable component. Microsoft has not listed affected builds.
What to do: Apply Microsoft's update for CVE-2026-109473. No fixed version or workaround is stated.
| Product | Affected |
|---|---|
| Microsoft Windows Kernel | — |
Estimated exposure
largeNo 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
Use after free in Windows Kernel allows an authorized attacker to elevate privileges locally.
- Weakness
- CWE-416
- Vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H