Microsoft Office 2016 vulnerabilities

CVE-2024-21413 [CRITICAL] CWE-20 CVE-2024-21413: Microsoft Outlook Remote Code Execution Vulnerability Microsoft Outlook Remote Code Execution Vulnerability

CVE-2026-21509 [HIGH] CWE-807 CVE-2026-21509: Reliance on untrusted inputs in a security decision in Microsoft Office allows an unauthorized attac Reliance on untrusted inputs in a security decision in Microsoft Office allows an unauthorized attacker to bypass a security feature locally.

CVE-2021-42292 [HIGH] CVE-2021-42292: Microsoft Excel Security Feature Bypass Vulnerability Microsoft Excel Security Feature Bypass Vulnerability

CVE-2021-38646 [HIGH] CVE-2021-38646: Microsoft Office Access Connectivity Engine Remote Code Execution Vulnerability Microsoft Office Access Connectivity Engine Remote Code Execution Vulnerability

CVE-2021-27059 [MEDIUM] CVE-2021-27059: Microsoft Office Remote Code Execution Vulnerability Microsoft Office Remote Code Execution Vulnerability

CVE-2024-38021 [HIGH] CWE-20 CVE-2024-38021: Microsoft Outlook Remote Code Execution Vulnerability Microsoft Outlook Remote Code Execution Vulnerability

CVE-2023-23399 [HIGH] CWE-125 CVE-2023-23399: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability

CVE-2026-78510 [CRITICAL] CWE-122 CVE-2026-78510: Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVE-2026-69442 [HIGH] CWE-122 CVE-2026-69442: Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.

CVE-2026-78505 [HIGH] CWE-122 CVE-2026-78505: Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.

CVE-2026-69778 [HIGH] CWE-122 CVE-2026-69778: Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute cod Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.

CVE-2026-78524 [HIGH] CWE-787 CVE-2026-78524: Out-of-bounds write in Microsoft Office allows an unauthorized attacker to execute code over a netwo Out-of-bounds write in Microsoft Office allows an unauthorized attacker to execute code over a network.

CVE-2026-69764 [HIGH] CWE-122 CVE-2026-69764: Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVE-2026-81955 [HIGH] CWE-122 CVE-2026-81955: Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execut Heap-based buffer overflow in Microsoft Graphics Component allows an unauthorized attacker to execute code over a network.

CVE-2026-69285 [HIGH] CWE-122 CVE-2026-69285: Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code over a network.

CVE-2021-28455 [HIGH] CVE-2021-28455: Microsoft Jet Red Database Engine and Access Connectivity Engine Remote Code Execution Vulnerability Microsoft Jet Red Database Engine and Access Connectivity Engine Remote Code Execution Vulnerability

CVE-2026-81952 [HIGH] CWE-122 CVE-2026-81952: Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVE-2026-78526 [HIGH] CWE-122 CVE-2026-78526: Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVE-2026-69529 [HIGH] CWE-122 CVE-2026-69529: Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute cod Heap-based buffer overflow in Microsoft Office Access allows an unauthorized attacker to execute code over a network.

CVE-2026-78518 [HIGH] CWE-20 CVE-2026-78518: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.