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Vulnerabilities of Microsoft Microsoft Office LTSC 2021

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CVE Summary Score Published
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
CVE-2026-97778 Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97765 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-2026-97003 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-2026-97747 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97758 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-2026-97767 Double free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97776 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-2026-97751 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-2026-97770 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-2026-97752 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97771 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97754 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-2026-97780 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-2026-97001 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Oct 13, 2026
CVE-2026-97014 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally 5.5 Medium Oct 13, 2026
CVE-2026-97005 Out-of-bounds read in Microsoft Office PowerPoint allows an unauthorized attacker to disclose information locally 5.5 Medium Oct 13, 2026
CVE-2026-97017 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026
CVE-2026-97766 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-2026-97749 Double free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network 9.8 Critical Oct 13, 2026
CVE-2026-97009 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Oct 13, 2026
CVE-2026-97750 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-2026-97740 Exposure of sensitive system information to an unauthorized control sphere in Microsoft Office Excel allows an… 6.5 Medium Oct 13, 2026
CVE-2026-96997 Use after free in Microsoft Office OneNote allows an authorized attacker to elevate privileges locally 7.8 High Oct 13, 2026
CVE-2026-97753 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network 8.8 High Oct 13, 2026

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