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Known vulnerabilities in Microsoft Word 2016

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CVE Summary Score Published
CVE-2026-55130 Heap-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55142 Numeric truncation error in Microsoft Office Word allows an unauthorized attacker to disclose information locally 5.5 Medium Jul 14, 2026
CVE-2026-55134 Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55132 Double free in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55038 Stack-based buffer overflow in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Jul 14, 2026
CVE-2026-55055 Stack-based buffer overflow in Microsoft Office Word 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-2026-55124 Improper validation of specified type of input in Microsoft Office Word allows an unauthorized attacker to disclose… 5.5 Medium Jul 14, 2026
CVE-2026-55033 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-2026-55050 Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally 5.5 Medium Jul 14, 2026
CVE-2026-45458 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
CVE-2026-45471 Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Jun 9, 2026
CVE-2026-40367 Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker… 8.4 High May 12, 2026
CVE-2026-40361 Use after free in Microsoft Office allows an unauthorized attacker to execute code locally 8.4 High May 12, 2026
CVE-2026-40421 Files or directories accessible to external parties in Microsoft Office Word allows an unauthorized attacker to disclose… 4.3 Medium May 12, 2026
CVE-2026-40364 Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker… 8.4 High May 12, 2026
CVE-2026-40366 Access of resource using incompatible type ('type confusion') in Microsoft Office Word allows an unauthorized attacker… 8.4 High May 12, 2026
CVE-2026-35440 Files or directories accessible to external parties in Microsoft Office Word allows an unauthorized attacker to disclose… 5.5 Medium May 12, 2026
CVE-2026-21511 Deserialization of untrusted data in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a… 7.5 High Feb 10, 2026
CVE-2026-20948 Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Jan 13, 2026
CVE-2025-62559 Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Dec 9, 2025
CVE-2025-62558 Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Dec 9, 2025
CVE-2025-62555 Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.0 High Dec 9, 2025

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