November 2026 Patch Tuesday lists dozens of Microsoft flaws
The excerpt lists 57 CVEs, including CVSS 9.8 remote code execution bugs rated exploitation less likely.
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CVE-2026-123387
Command injection privilege escalation in Windows Active Directory
- CVSS 3.1
- 8.0 high
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
A command-injection flaw in Windows Active Directory lets an already authorized attacker elevate privileges over the network. Triggering it requires low privileges and user interaction. Successful exploitation yields high impact on confidentiality, integrity, and availability. Microsoft has not listed affected builds or fixed versions.
What to do: Apply Microsoft's update for CVE-2026-123387. Microsoft has not stated a fixed version or workaround.
| Product | Affected |
|---|---|
| Microsoft Windows Active Directory | — |
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 neutralization of special elements used in a command ('command injection') in Windows Active Directory allows an authorized attacker to elevate privileges over a network.
- Weakness
- CWE-77
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
In the news
2 storiesMicrosoft November 2026 Patch Tuesday covers dozens of Windows flaws
The visible Rapid7 list includes several 9.8 remote code execution bugs; each entry is marked not publicly disclosed.
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