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Vulnerabilities of Microsoft Microsoft Office 365 for Mac

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CVE Summary Score Published
CVE-2026-55136 Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55127 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55138 Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to disclose information locally 5.5 Medium Jul 14, 2026
CVE-2026-55124 Improper validation of specified type of input in Microsoft Office Word allows an unauthorized attacker to disclose… 5.5 Medium Jul 14, 2026
CVE-2026-55041 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55033 Integer overflow or wraparound in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55032 Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55049 Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55050 Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally 5.5 Medium Jul 14, 2026
CVE-2026-55045 Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally 8.4 High Jul 14, 2026
CVE-2026-55039 Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55028 Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally 5.5 Medium Jul 14, 2026
CVE-2026-55047 Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally 5.5 Medium Jul 14, 2026
CVE-2026-55027 Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally 5.5 Medium Jul 14, 2026
CVE-2026-55029 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55048 Integer overflow or wraparound in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55026 Integer overflow or wraparound in Microsoft Office allows an unauthorized attacker to disclose information locally 6.2 Medium Jul 14, 2026
CVE-2026-55125 Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55031 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55025 Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized… 7.8 High Jul 14, 2026
CVE-2026-55022 Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to… 7.8 High Jul 14, 2026
CVE-2026-55023 Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally 5.5 Medium Jul 14, 2026
CVE-2026-55046 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally 5.5 Medium Jul 14, 2026
CVE-2026-55018 Use after free in Microsoft Office allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-50408 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally 5.5 Medium Jul 14, 2026

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