Microsoft Office 2019 vulnerabilities

CVE-2026-21260 [HIGH] CWE-200 CVE-2026-21260: Exposure of sensitive information to an unauthorized actor in Microsoft Office Outlook allows an una Exposure of sensitive information to an unauthorized actor in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.

CVE-2026-55125 [HIGH] CWE-122 CVE-2026-55125: Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code local Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2024-43504 [HIGH] CWE-416 CVE-2024-43504: Microsoft Excel Remote Code Execution Vulnerability Microsoft Excel Remote Code Execution Vulnerability

CVE-2026-77898 [HIGH] CWE-122 CVE-2026-77898: 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-2020-16933 [HIGH] CVE-2020-16933: <p>A security feature bypass vulnerability exists in Microsoft Word software when it fails to proper A security feature bypass vulnerability exists in Microsoft Word software when it fails to properly handle .LNK files. An attacker who successfully exploited the vulnerability could use a specially crafted file to perform actions in the security context of the current user. For example, the file could then take actions on behalf of the logged-on user with the

CVE-2026-55128 [HIGH] CWE-416 CVE-2026-55128: 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-2026-55130 [HIGH] CWE-122 CVE-2026-55130: 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 locally.

CVE-2026-55032 [HIGH] CWE-416 CVE-2026-55032: 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-2026-55127 [HIGH] CWE-122 CVE-2026-55127: 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 locally.

CVE-2026-21259 [HIGH] CWE-122 CVE-2026-21259: Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to elevate priv Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to elevate privileges locally.

CVE-2026-26108 [HIGH] CWE-122 CVE-2026-26108: 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 locally.

CVE-2026-65661 [HIGH] CWE-122 CVE-2026-65661: Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code local Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-65664 [HIGH] CWE-122 CVE-2026-65664: Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code local Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-63513 [HIGH] CWE-122 CVE-2026-63513: Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code local Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-63533 [HIGH] CWE-122 CVE-2026-63533: Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code local Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-64898 [HIGH] CWE-122 CVE-2026-64898: Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code local Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-63519 [HIGH] CWE-122 CVE-2026-63519: Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code local Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-55129 [HIGH] CWE-122 CVE-2026-55129: Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code local Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-50301 [HIGH] CWE-122 CVE-2026-50301: Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code local Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-55120 [HIGH] CWE-122 CVE-2026-55120: 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.