Microsoft Office Ltsc 2021 vulnerabilities

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-2025-59236 [HIGH] CWE-416 CVE-2025-59236: 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-2026-85340 [HIGH] CWE-416 CVE-2026-85340: Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.

CVE-2026-88109 [HIGH] CWE-416 CVE-2026-88109: Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges Use after free in Microsoft Office Click-To-Run allows an authorized attacker to elevate privileges locally.

CVE-2026-96997 [HIGH] CWE-416 CVE-2026-96997: Use after free in Microsoft Office OneNote allows an authorized attacker to elevate privileges local Use after free in Microsoft Office OneNote allows an authorized attacker to elevate privileges 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-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-2025-24057 [HIGH] CWE-122 CVE-2025-24057: 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-2025-49703 [HIGH] CWE-416 CVE-2025-49703: 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-2025-59234 [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-2025-54908 [HIGH] CWE-416 CVE-2025-54908: 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-2025-62203 [HIGH] CWE-416 CVE-2025-62203: 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-2025-62201 [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-2026-20957 [HIGH] CWE-122 CVE-2026-20957: 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-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-2026-81949 [HIGH] CWE-190 CVE-2026-81949: 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-2026-64909 [HIGH] CWE-122 CVE-2026-64909: Integer underflow (wrap or wraparound) in Microsoft Office allows an unauthorized attacker to execut Integer underflow (wrap or wraparound) in Microsoft Office 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.