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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Vulnerability1 · 1 read
CVE-2026-119903
Local privilege escalation in Windows Installer
- CVSS 3.1
- 7.8 high
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
Improper access control in Windows Installer (classified as path traversal) lets an already authorized local user raise privileges. No user interaction is required. A successful attack yields high impact on confidentiality, integrity, and availability on the machine. Microsoft has not listed affected builds.
What to do: Apply Microsoft's update for CVE-2026-119903. No workaround is named.
| Product | Affected |
|---|---|
| Microsoft Windows Installer | — |
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
Improper access control in Windows Installer allows an authorized attacker to elevate privileges locally.
- Weakness
- CWE-22
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H