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Known vulnerabilities in Microsoft 365 Apps for Enterprise

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CVE Summary Score Published
CVE-2026-105599 Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network 7.5 High Oct 13, 2026
CVE-2026-94506 Out-of-bounds read in Microsoft Office Access allows an unauthorized attacker to disclose information over a network 6.5 Medium Oct 13, 2026
CVE-2026-102867 Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information over a network 6.5 Medium Oct 13, 2026
CVE-2026-105591 Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-105592 Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network 7.5 High Oct 13, 2026
CVE-2026-105593 Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-105595 Out-of-bounds read in Microsoft Office Access allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-105596 Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-105597 Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-102855 Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-102856 Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-102857 Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-102850 Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-102849 Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-100208 Integer overflow or wraparound in Microsoft Office Outlook allows an unauthorized attacker to execute code over a… 7.5 High Sep 25, 2026
CVE-2026-70125 Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code locally 7.8 High Sep 23, 2026
CVE-2026-62804 External control of file name or path in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Sep 8, 2026
CVE-2026-85875 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally 5.5 Medium Sep 8, 2026
CVE-2026-83949 Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information locally 5.5 Medium Sep 8, 2026
CVE-2026-83951 Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information locally 5.5 Medium Sep 8, 2026
CVE-2026-81948 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Sep 8, 2026
CVE-2026-81950 Double free in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Sep 8, 2026
CVE-2026-81949 Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Sep 8, 2026
CVE-2026-81953 Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Sep 8, 2026
CVE-2026-81959 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Sep 8, 2026

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