Microsoft Office Ltsc 2021 vulnerabilities

CVE-2026-97778 [HIGH] CWE-190 CVE-2026-97778: 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 over a network.

CVE-2026-70269 [HIGH] CWE-122 CVE-2026-70269: 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 over a network.

CVE-2026-88185 [HIGH] CWE-122 CVE-2026-88185: 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 over a network.

CVE-2026-70254 [HIGH] CWE-125 CVE-2026-70254: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-70125 [HIGH] CWE-122 CVE-2026-70125: Microsoft Office Outlook Remote Code Execution Vulnerability Microsoft Office Outlook Remote Code Execution Vulnerability

CVE-2026-105718 [HIGH] CWE-20 CVE-2026-105718: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-78518 [HIGH] CWE-20 CVE-2026-78518: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-78512 [HIGH] CWE-122 CVE-2026-78512: Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code ov Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVE-2026-97755 [HIGH] CWE-125 CVE-2026-97755: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code over a network.

CVE-2026-108443 [HIGH] CWE-193 CVE-2026-108443: Off-by-one error in Microsoft Office Word allows an unauthorized attacker to execute code over a net Off-by-one error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVE-2026-108451 [HIGH] CWE-122 CVE-2026-108451: Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code ov Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVE-2026-40361 [HIGH] CWE-416 CVE-2026-40361: 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-2026-20953 [HIGH] CWE-416 CVE-2026-20953: 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-2026-20952 [HIGH] CWE-416 CVE-2026-20952: 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-2026-40363 [HIGH] CWE-122 CVE-2026-40363: 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-2026-78510 [HIGH] CWE-122 CVE-2026-78510: 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-2026-40358 [HIGH] CWE-416 CVE-2026-40358: 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-2022-21840 [HIGH] CVE-2022-21840: Microsoft Office Remote Code Execution Vulnerability Microsoft Office Remote Code Execution Vulnerability

CVE-2026-77901 [HIGH] CWE-476 CVE-2026-77901: Null pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code ov Null pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code over a network.

CVE-2026-45458 [HIGH] CWE-416 CVE-2026-45458: 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.