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CVE-2026-20955
HIGH
CVSS: 7.8
Published: 2026-01-13
Modified: 2026-06-17
Description
Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
Affected Platforms
Microsoft Office Long Term Servicing ChannelMicrosoft 365 AppsMicrosoft OfficeMicrosoft Office Online Server