Microsoft Office Ltsc 2021 vulnerabilities

CVE-2025-54903 [HIGH] CWE-416 CVE-2025-54903: 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-2025-54900 [HIGH] CWE-122 CVE-2025-54900: 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-2025-53761 [HIGH] CWE-416 CVE-2025-53761: Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locall Use after free in Microsoft Office PowerPoint 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-2025-59243 [HIGH] CWE-416 CVE-2025-59243: 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-2026-55132 [HIGH] CWE-415 CVE-2026-55132: Double free in Microsoft Office Word allows an unauthorized attacker to execute code locally. Double free in Microsoft Office Word allows an unauthorized attacker to execute code locally.

CVE-2025-59225 [HIGH] CWE-416 CVE-2025-59225: 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-2025-59224 [HIGH] CWE-416 CVE-2025-59224: 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-2025-59222 [HIGH] CWE-416 CVE-2025-59222: 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-2025-59223 [HIGH] CWE-416 CVE-2025-59223: 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-2026-40419 [HIGH] CWE-416 CVE-2026-40419: 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-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-2025-49696 [HIGH] CWE-122 CVE-2025-49696: Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally. Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.

CVE-2024-49033 [HIGH] CWE-20 CVE-2024-49033: Microsoft Word Security Feature Bypass Vulnerability Microsoft Word Security Feature Bypass Vulnerability

CVE-2025-27745 [HIGH] CWE-416 CVE-2025-27745: 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-2025-27748 [HIGH] CWE-416 CVE-2025-27748: 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-2025-27749 [HIGH] CWE-416 CVE-2025-27749: 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-2025-27752 [HIGH] CWE-122 CVE-2025-27752: 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-2025-27746 [HIGH] CWE-416 CVE-2025-27746: 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.