Microsoft Office 2019 vulnerabilities

CVE-2026-26113 [HIGH] CWE-822 CVE-2026-26113: Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code lo Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2025-53730 [HIGH] CWE-416 CVE-2025-53730: Use after free in Microsoft Office Visio allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Visio allows an unauthorized attacker to execute code locally.

CVE-2026-26109 [HIGH] CWE-125 CVE-2026-26109: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2025-49705 [HIGH] CWE-122 CVE-2025-49705: Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.

CVE-2026-55048 [HIGH] CWE-122 CVE-2026-55048: Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-55039 [HIGH] CWE-122 CVE-2026-55039: Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-55949 [HIGH] CWE-908 CVE-2026-55949: Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute c Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-40418 [HIGH] CWE-416 CVE-2026-40418: Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally. Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.

CVE-2021-40486 [HIGH] CVE-2021-40486: Microsoft Word Remote Code Execution Vulnerability Microsoft Word Remote Code Execution Vulnerability

CVE-2021-38655 [HIGH] CWE-416 CVE-2021-38655: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability

CVE-2020-16932 [HIGH] CWE-908 CVE-2020-16932: <p>A remote code execution vulnerability exists in Microsoft Excel software when the software fails A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of t

CVE-2020-16931 [HIGH] CWE-908 CVE-2020-16931: <p>A remote code execution vulnerability exists in Microsoft Excel software when the software fails A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of t

CVE-2020-16930 [HIGH] CWE-787 CVE-2020-16930: <p>A remote code execution vulnerability exists in Microsoft Excel software when the software fails A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of t

CVE-2020-16929 [HIGH] CWE-416 CVE-2020-16929: <p>A remote code execution vulnerability exists in Microsoft Excel software when the software fails A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of t

CVE-2024-20677 [HIGH] CWE-122 CVE-2024-20677: A security vulnerability exists in FBX that could lead to remote code execution. To mitigate this vu A security vulnerability exists in FBX that could lead to remote code execution. To mitigate this vulnerability, the ability to insert FBX files has been disabled in Word, Excel, PowerPoint and Outlook for Windows and Mac. Versions of Office that had this feature enabled will no longer have access to it. This includes Office 2019, Office 2021, Office

CVE-2020-17128 [HIGH] CVE-2020-17128: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability

CVE-2025-26630 [HIGH] CWE-416 CVE-2025-26630: Use after free in Microsoft Office Access allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Access allows an unauthorized attacker to execute code locally.

CVE-2025-27750 [HIGH] CWE-416 CVE-2025-27750: 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-2025-27747 [HIGH] CWE-822 CVE-2025-27747: Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2025-29820 [HIGH] CWE-416 CVE-2025-29820: Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally.