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Known vulnerabilities in Microsoft 365 Apps for Enterprise

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CVE Summary Score Published
CVE-2026-40419 Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally 7.8 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-2026-40363 Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally 8.4 High May 12, 2026
CVE-2026-40360 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally 7.8 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-2026-21530 Double free in Windows Rich Text Edit allows an authorized attacker to elevate privileges locally 6.7 Medium May 12, 2026
CVE-2026-33115 Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally 8.4 High Apr 14, 2026
CVE-2026-33114 Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally 8.4 High Apr 14, 2026
CVE-2026-32200 Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally 7.8 High Apr 14, 2026
CVE-2026-32199 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Apr 14, 2026
CVE-2026-32197 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Apr 14, 2026
CVE-2026-32198 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Apr 14, 2026
CVE-2026-32190 Use after free in Microsoft Office allows an unauthorized attacker to execute code locally 8.4 High Apr 14, 2026
CVE-2026-23657 Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Apr 14, 2026
CVE-2026-33822 Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to disclose information locally 6.1 Medium Apr 14, 2026
CVE-2026-33095 Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Apr 14, 2026
CVE-2026-32189 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Apr 14, 2026
CVE-2026-32188 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally 7.1 High Apr 14, 2026
CVE-2026-26144 Improper neutralization of input during web page generation ('cross-site scripting') in Microsoft Office Excel allows an… 7.5 High Mar 10, 2026
CVE-2026-26109 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally 8.4 High Mar 10, 2026
CVE-2026-26110 Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to… 8.4 High Mar 10, 2026
CVE-2026-26107 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Mar 10, 2026
CVE-2026-26108 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Mar 10, 2026

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