CVE-2026-123379 · Other
NO FIX YET
A heap-based buffer overflow in Microsoft Office Outlook lets an unauthenticated attacker over a network trigger memory corruption. The sources say an attacker can execute code on the affected machine.
first public Nov 10, 2026 · 1 source
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Anyone running an affected version of Microsoft Office Outlook may be exposed, since the flaw is reachable over a network without credentials. The sources do not say which Outlook versions or configurations are affected, or whether user interaction is needed.
Who cares microsoft-office, outlook, windows
Unknown from the sources. In the analyst’s queue.
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:H/PR:N/UI:R/S:U/C:H/I:H/A:H
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