CVE-2026-123380 · Other
NO FIX YET
A heap-based buffer overflow in Microsoft Office Outlook lets an unauthorized attacker execute code over a network. The sources rate it high (CVSS 8.8) and do not describe the trigger or any user action needed.
first public Nov 10, 2026 · 1 source
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Organizations running Microsoft Office Outlook; the sources do not list affected builds or the trigger path. unknown
Who cares microsoft-office, outlook, windows
Microsoft Office Outlook version details.No fix yet, per the sources.
Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
This page as .md · .json · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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