Microsoft Office 2019 vulnerabilities

CVE-2026-70105 [HIGH] CWE-20 CVE-2026-70105: Improper input validation in Microsoft Office Word allows an unauthorized attacker to disclose infor Improper input validation in Microsoft Office Word allows an unauthorized attacker to disclose information over a network.

CVE-2025-47994 [HIGH] CWE-502 CVE-2025-47994: Deserialization of untrusted data in Microsoft Office allows an unauthorized attacker to elevate pri Deserialization of untrusted data in Microsoft Office allows an unauthorized attacker to elevate privileges locally.

CVE-2025-53733 [HIGH] CWE-681 CVE-2025-53733: Incorrect conversion between numeric types in Microsoft Office Word allows an unauthorized attacker Incorrect conversion between numeric types in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2026-55033 [HIGH] CWE-122 CVE-2026-55033: Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute c Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2025-59234 [HIGH] CWE-416 CVE-2025-59234: Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

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-2025-54907 [HIGH] CWE-122 CVE-2025-54907: Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code Heap-based buffer overflow in Microsoft Office Visio allows an unauthorized attacker to execute code locally.

CVE-2025-62201 [HIGH] CWE-122 CVE-2025-62201: 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-2025-59227 [HIGH] CWE-416 CVE-2025-59227: Use after free in Microsoft Office allows an unauthorized attacker to execute code locally. Use after free in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-55141 [HIGH] CWE-121 CVE-2026-55141: 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 locally.

CVE-2026-55899 [HIGH] CWE-20 CVE-2026-55899: 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 locally.

CVE-2025-62554 [HIGH] CWE-843 CVE-2025-62554: Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthor Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-64914 [HIGH] CWE-122 CVE-2026-64914: 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 locally.

CVE-2026-68817 [HIGH] CWE-121 CVE-2026-68817: 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 locally.

CVE-2026-65656 [HIGH] CWE-77 CVE-2026-65656: Improper neutralization of special elements used in a command ('command injection') in Microsoft Off Improper neutralization of special elements used in a command ('command injection') in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-66807 [HIGH] CWE-121 CVE-2026-66807: Stack-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code loca Stack-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-63526 [HIGH] CWE-121 CVE-2026-63526: Stack-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code loca Stack-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2026-68816 [HIGH] CWE-121 CVE-2026-68816: 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 locally.

CVE-2026-64907 [HIGH] CWE-121 CVE-2026-64907: 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 locally.

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