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Vulnerabilities of Microsoft Office Online Server

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CVE Summary Score Published
CVE-2026-108446 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 15, 2026
CVE-2026-100210 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-100212 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97768 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97772 Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97775 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97004 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97746 Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code over… 8.8 High Oct 13, 2026
CVE-2026-97757 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97738 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97010 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97760 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network 6.5 Medium Oct 13, 2026
CVE-2026-97777 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97742 Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97762 Out-of-bounds write in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97763 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97756 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97007 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97748 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97008 Buffer underwrite ('buffer underflow') in Microsoft Office Excel allows an unauthorized attacker to execute code over… 8.8 High Oct 13, 2026
CVE-2026-97769 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97779 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network 6.5 Medium Oct 13, 2026
CVE-2026-97773 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97755 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97739 Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code over… 8.8 High Oct 13, 2026

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