CVE-2026-68800: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

PriorityP347high7.8CVSS 3.1

AVLACLPRNUIRSUCHIHAH

EPSS

0.47%

39.4th percentile

Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
microsoft	excel	—	—
microsoft	microsoft_office_365_for_mac	>= 1.0.0 < 16.112.26081010	16.112.26081010

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