Microsoft Office Ltsc 2021 vulnerabilities

CVE-2026-70242 [CRITICAL] CWE-122 CVE-2026-70242: Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute co Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

CVE-2024-21378 [HIGH] CWE-94 CVE-2024-21378: Microsoft Outlook Remote Code Execution Vulnerability Microsoft Outlook Remote Code Execution Vulnerability

CVE-2026-70291 [CRITICAL] CWE-122 CVE-2026-70291: Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute co Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

CVE-2023-32029 [HIGH] CWE-125 CVE-2023-32029: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability

CVE-2026-97749 [CRITICAL] CWE-415 CVE-2026-97749: Double free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a netwo Double free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

CVE-2026-97016 [CRITICAL] CWE-122 CVE-2026-97016: Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute co Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

CVE-2023-33133 [HIGH] CWE-122 CVE-2023-33133: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability

CVE-2026-78509 [CRITICAL] CWE-122 CVE-2026-78509: Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute co Heap-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

CVE-2025-47171 [MEDIUM] CWE-20 CVE-2025-47171: Improper input validation in Microsoft Office Outlook allows an authorized attacker to execute code Improper input validation in Microsoft Office Outlook allows an authorized attacker to execute code locally.

CVE-2026-70300 [CRITICAL] CWE-822 CVE-2026-70300: Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute co Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVE-2026-70096 [CRITICAL] CWE-122 CVE-2026-70096: Heap-based buffer overflow in Windows Rich Text Edit Control allows an unauthorized attacker to exec Heap-based buffer overflow in Windows Rich Text Edit Control allows an unauthorized attacker to execute code over a network.

CVE-2026-88178 [CRITICAL] CWE-416 CVE-2026-88178: Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code over a network.

CVE-2024-30103 [HIGH] CWE-184 CVE-2024-30103: Microsoft Outlook Remote Code Execution Vulnerability Microsoft Outlook Remote Code Execution Vulnerability

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-2026-83891 [HIGH] CWE-20 CVE-2026-83891: Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Stack-based buffer overflow in Microsoft Office Word 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-2026-97012 [HIGH] CWE-121 CVE-2026-97012: Stack-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute c Stack-based buffer overflow in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.

CVE-2026-69614 [HIGH] CWE-20 CVE-2026-69614: Stack-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute co Stack-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.

CVE-2026-78504 [HIGH] CWE-121 CVE-2026-78504: Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.