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Vulnerabilities of Microsoft Microsoft Office 365 for Mac

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CVE Summary Score Published
CVE-2026-55024 Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized… 7.8 High Jul 14, 2026
CVE-2026-50314 Use after free in Microsoft Office allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-50467 Use after free in Microsoft Office allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-48580 Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to disclose information locally 5.5 Medium Jul 14, 2026
CVE-2026-47642 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-50387 Stack-based buffer overflow in Windows GDI allows an authorized attacker to elevate privileges locally 7.8 High Jul 14, 2026
CVE-2026-58618 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-56193 Out-of-bounds read in Microsoft Office allows an unauthorized attacker to disclose information locally 7.1 High Jul 14, 2026
CVE-2026-55948 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55899 Stack-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-54988 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally 6.1 Medium Jul 14, 2026
CVE-2026-50678 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to disclose information locally 6.6 Medium Jul 14, 2026
CVE-2026-50675 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-45463 Integer underflow (wrap or wraparound) in Microsoft Office allows an unauthorized attacker to execute code locally 8.4 High Jun 9, 2026
CVE-2026-45457 Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Jun 9, 2026
CVE-2026-45459 Protection mechanism failure in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature… 3.3 Low Jun 9, 2026
CVE-2026-45455 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally 3.3 Low Jun 9, 2026
CVE-2026-44822 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network 8.2 High Jun 9, 2026
CVE-2026-45645 Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally 7.8 High Jun 9, 2026
CVE-2026-45643 Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Jun 9, 2026
CVE-2026-45466 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to disclose information locally 3.3 Low Jun 9, 2026
CVE-2026-45461 Use after free in Microsoft Office allows an unauthorized attacker to execute code locally 8.4 High Jun 9, 2026
CVE-2026-45460 Buffer over-read in Microsoft Office allows an unauthorized attacker to disclose information locally 4.7 Medium Jun 9, 2026
CVE-2026-45458 Use after free in Microsoft Office allows an unauthorized attacker to execute code locally 8.4 High Jun 9, 2026
CVE-2026-45456 Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to… 8.4 High Jun 9, 2026

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