CVE-2026-20957

Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-20956

Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-20955

Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-20953

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-20952

Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.
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