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-2026-112811
Local privilege escalation via stack overflow in Windows Print Spooler
- CVSS 3.1
- 7.8 high
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
A stack-based buffer overflow in Windows Print Spooler Components lets a locally authenticated user elevate privileges without further user interaction. The attacker gains high control over confidentiality, integrity, and availability on the affected system. Microsoft has not listed affected builds or a fixed version.
What to do: Apply Microsoft's update for CVE-2026-112811.
| Product | Affected |
|---|---|
| Microsoft Windows Print Spooler Components | — |
Estimated exposure
largeWidespread Windows hosts; local user required — Print Spooler ships with Windows; attack needs a local authorized user, so scale is capped.
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
Description · NVD
Stack-based buffer overflow in Windows Print Spooler Components allows an authorized attacker to elevate privileges locally.
- Weakness
- CWE-121, CWE-822
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H