Microsoft Office Online Server vulnerabilities

CVE-2017-11826 [HIGH] CWE-119 CVE-2017-11826: Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Microsoft Office 2010, SharePoint Enterprise Server 2010, SharePoint Server 2010, Web Applications, Office Web Apps Server 2010 and 2013, Word Viewer, Word 2007, 2010, 2013 and 2016, Word Automation Services, and Office Online Server allow remote code execution when the software fails to properly handle objects in memory.

CVE-2023-21716 [CRITICAL] CWE-190 CVE-2023-21716: Microsoft Word Remote Code Execution Vulnerability Microsoft Word Remote Code Execution Vulnerability

CVE-2025-47165 [HIGH] CWE-416 CVE-2025-47165: Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-27751 [HIGH] CWE-416 CVE-2025-27751: Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2018-0792 [HIGH] CWE-787 CVE-2018-0792: Microsoft Word 2016 in Microsoft Office 2016 allows a remote code execution vulnerability due to the Microsoft Word 2016 in Microsoft Office 2016 allows a remote code execution vulnerability due to the way objects are handled in memory, aka "Microsoft Word Remote Code Execution Vulnerability". This CVE is unique from CVE-2018-0794.

CVE-2017-8512 [HIGH] CVE-2017-8512: A remote code execution vulnerability exists in Microsoft Office when the software fails to properly A remote code execution vulnerability exists in Microsoft Office when the software fails to properly handle objects in memory, aka "Office Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8509, CVE-2017-8510, CVE-2017-8511, CVE-2017-0260, and CVE-2017-8506.

CVE-2026-97742 [HIGH] CWE-121 CVE-2026-97742: Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute cod Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-97750 [HIGH] CWE-121 CVE-2026-97750: Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute cod Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-97770 [HIGH] CWE-121 CVE-2026-97770: Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute cod Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-100210 [HIGH] CWE-122 CVE-2026-100210: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-97756 [HIGH] CWE-122 CVE-2026-97756: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-97769 [HIGH] CWE-20 CVE-2026-97769: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-97004 [HIGH] CWE-122 CVE-2026-97004: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-97768 [HIGH] CWE-122 CVE-2026-97768: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-97007 [HIGH] CWE-122 CVE-2026-97007: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-97763 [HIGH] CWE-122 CVE-2026-97763: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-97748 [HIGH] CWE-122 CVE-2026-97748: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-97757 [HIGH] CWE-122 CVE-2026-97757: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-97777 [HIGH] CWE-122 CVE-2026-97777: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-97773 [HIGH] CWE-122 CVE-2026-97773: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.