Microsoft Office 365 For Mac vulnerabilities

CVE-2026-50387 [HIGH] CWE-121 CVE-2026-50387: Stack-based buffer overflow in Windows GDI allows an authorized attacker to elevate privileges local Stack-based buffer overflow in Windows GDI allows an authorized attacker to elevate privileges locally.

CVE-2026-45461 [HIGH] CWE-416 CVE-2026-45461: 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-2026-45472 [HIGH] CWE-416 CVE-2026-45472: 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-2026-45474 [HIGH] CWE-416 CVE-2026-45474: 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-2026-45458 [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.

CVE-2026-45463 [HIGH] CWE-121 CVE-2026-45463: 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-2026-45456 [HIGH] CWE-843 CVE-2026-45456: 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-2026-44822 [HIGH] CWE-125 CVE-2026-44822: Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

CVE-2026-50314 [HIGH] CWE-416 CVE-2026-50314: 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-2026-44819 [HIGH] CWE-122 CVE-2026-44819: 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-2026-45475 [HIGH] CWE-122 CVE-2026-45475: 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-2026-44824 [HIGH] CWE-122 CVE-2026-44824: 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-2026-55120 [HIGH] CWE-122 CVE-2026-55120: Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.

CVE-2026-55123 [HIGH] CWE-122 CVE-2026-55123: Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.

CVE-2026-55043 [HIGH] CWE-122 CVE-2026-55043: Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally.

CVE-2026-55129 [HIGH] CWE-122 CVE-2026-55129: 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-2026-55018 [HIGH] CWE-416 CVE-2026-55018: 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-2026-50467 [HIGH] CWE-416 CVE-2026-50467: 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-2026-55056 [HIGH] CWE-122 CVE-2026-55056: 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-2026-55140 [HIGH] CWE-122 CVE-2026-55140: 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.