Microsoft Microsoft Office Ltsc 2021

783 CVEs affecting Microsoft Microsoft Office Ltsc 2021. Latest disclosed: 2026-10-15. Critical: 13, High: 583.

Top CVEs affecting Microsoft Microsoft Office Ltsc 2021
CVE	Severity	Score	Published	Summary
`CVE-2026-97749`	Critical	`9.8`	2026-10-13	Double free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
`CVE-2026-97016`	Critical	`9.8`	2026-10-13	Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
`CVE-2026-88178`	Critical	`9.8`	2026-10-13	Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.
`CVE-2026-88156`	Critical	`9.8`	2026-10-13	Stack-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
`CVE-2026-70300`	Critical	`9.8`	2026-10-13	Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
`CVE-2026-70291`	Critical	`9.8`	2026-10-13	Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
`CVE-2026-70242`	Critical	`9.8`	2026-10-13	Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
`CVE-2026-70096`	Critical	`9.8`	2026-10-13	Heap-based buffer overflow in Windows Rich Text Edit Control allows an unauthorized attacker to execute code over a network.
`CVE-2026-78509`	Critical	`9.8`	2026-09-08	Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.
`CVE-2024-21413`	Critical	`9.8`	2024-02-13	Microsoft Outlook Remote Code Execution Vulnerability
`CVE-2023-23397`	Critical	`9.8`	2023-03-14	Microsoft Outlook Elevation of Privilege Vulnerability
`CVE-2023-21716`	Critical	`9.8`	2023-02-14	Microsoft Word Remote Code Execution Vulnerability
`CVE-2023-33150`	Critical	`9.6`	2023-07-11	Microsoft Office Security Feature Bypass Vulnerability
`CVE-2026-108451`	High	`8.8`	2026-10-15	Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
`CVE-2026-108450`	High	`8.8`	2026-10-15	Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
`CVE-2026-108449`	High	`8.8`	2026-10-15	Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
`CVE-2026-108447`	High	`8.8`	2026-10-15	Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
`CVE-2026-108446`	High	`8.8`	2026-10-15	Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.
`CVE-2026-108445`	High	`8.8`	2026-10-15	Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.
`CVE-2026-108444`	High	`8.8`	2026-10-15	Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.