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.
78
CVE-2026-88230
Local privilege escalation via heap overflow in Windows LUAFV
- CVSS 3.1
- 7.8 high
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
A heap-based buffer overflow in Windows LUAFV lets an already authorized local user elevate privileges without further user interaction. Successful exploitation can give high impact on confidentiality, integrity, and availability of the affected system. Microsoft has not listed affected builds or a fixed version.
What to do: Apply Microsoft's update for CVE-2026-88230. No workaround is stated.
| Product | Affected |
|---|---|
| Microsoft Windows LUAFV | — |
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
Heap-based buffer overflow in Windows LUAFV allows an authorized attacker to elevate privileges locally.
- Weakness
- CWE-122
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H