CVE-2026-81401Medium· 5.5▾ SunlitAccess of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
▾ Sunlit zone — Low / medium · no exploitation signal
impact 30.3 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Sep 10.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.5%
Last analysed / modified upstream
Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized attacker to disclose information locally.
365_appsexcel = 2016microsoft_365office_2016office_2019office_2021office_2024office_online_server < 16.0.10417.20207Upgrade past the affected range:
office_online_server 16.0.10417.20207Connected by shared product, vendor, weakness, or advisory.
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CVE-2026-81397High· 7.8Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.
CVE-2026-81398High· 7.8Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally.