Microsoft Office 2019 vulnerabilities

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-2026-26110 [HIGH] CWE-843 CVE-2026-26110: 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-2026-55131 [HIGH] CWE-122 CVE-2026-55131: 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-2026-47642 [HIGH] CWE-416 CVE-2026-47642: 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-2026-55137 [HIGH] CWE-122 CVE-2026-55137: 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-2026-55041 [HIGH] CWE-122 CVE-2026-55041: 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-2026-55948 [HIGH] CWE-416 CVE-2026-55948: 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-2026-58618 [HIGH] CWE-122 CVE-2026-58618: 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-2026-55029 [HIGH] CWE-122 CVE-2026-55029: 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-2026-55053 [HIGH] CWE-122 CVE-2026-55053: 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-2026-54131 [HIGH] CWE-416 CVE-2026-54131: 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-2026-50675 [HIGH] CWE-122 CVE-2026-50675: 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-2026-55037 [HIGH] CWE-122 CVE-2026-55037: 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-2026-55947 [HIGH] CWE-122 CVE-2026-55947: 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-2026-81388 [HIGH] CWE-121 CVE-2026-81388: 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-2026-26107 [HIGH] CWE-416 CVE-2026-26107: 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-2026-81953 [HIGH] CWE-121 CVE-2026-81953: 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-2026-81950 [HIGH] CWE-415 CVE-2026-81950: Double free in Microsoft Office Excel allows an unauthorized attacker to execute code locally. Double free in Microsoft Office Excel allows an unauthorized attacker to execute code locally.

CVE-2026-81396 [HIGH] CWE-121 CVE-2026-81396: 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-2026-68812 [HIGH] CWE-122 CVE-2026-68812: 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.