MICROSOFT OFFICE EXCEL · CVE-2026-118726 · Package
NO FIX YET
A heap-based buffer overflow in Microsoft Office Excel lets an unauthenticated attacker run code on a victim's machine over the network. The sources give no further detail on the trigger or the affected Excel builds.
first public Nov 10, 2026 · 1 source
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Anyone running Microsoft Office Excel on an affected build may be exposed, as the sources describe a network-reachable attack without credentials. The sources do not list affected versions or whether Office for the web or Mac is included. unknown
Who cares excel, microsoft-office, windows
Unknown from the sources. In the analyst’s queue.
No fix yet, per the sources.
Heap-based buffer overflow in Microsoft Office Excel 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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