Microsoft November 2026 patches fix 1095 flaws, one exploitedNew
Only CVE-2026-124194, an Outlook spoofing bug scored 6.5, is exploited; 48 of 64 critical issues are remote code execution.
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CVE-2026-109459
Heap buffer overflow in Windows Message Queuing Queue Manager
- CVSS 3.1
- 8.1 high
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
A heap-based buffer overflow in the Windows Message Queuing Queue Manager allows an unauthorized attacker to execute code over a network. Microsoft has not listed affected builds or a fixed release.
What to do: Apply Microsoft's update for CVE-2026-109459. No fixed version or workaround is listed.
| Product | Affected |
|---|---|
| Microsoft Windows Message Queuing Queue Manager | — |
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 Message Queuing Queue Manager allows an unauthorized attacker to execute code over a network.
- Weakness
- CWE-122
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
In the news
2 storiesMicrosoft November patches cover 1,260 flaws, one Outlook bug exploited
SANS says 68 issues are critical and CVE-2026-124194, an Outlook spoofing bug, is already exploited.
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