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Threat Entry Updated 2026-01-14

CVE-2026-20957 - Microsoft Excel 2016 Plugin

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

PLUGIN Microsoft Excel 2016

CVE-2026-20957

HIGH CVSS 7.8 2026-01-13

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Threat Entry Updated 2026-01-14

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

PLUGIN Microsoft Excel 2016

CVE-2026-20950

HIGH CVSS 7.8 2026-01-13

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Threat Entry Updated 2026-01-16

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

PLUGIN Microsoft Excel 2016

CVE-2026-20946

HIGH CVSS 7.8 2026-01-13

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