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Known vulnerabilities in Microsoft Office LTSC 2021

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CVE Summary Score Published
CVE-2025-53784 Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally 8.4 High Aug 12, 2025
CVE-2025-53740 Use after free in Microsoft Office allows an unauthorized attacker to execute code locally 8.4 High Aug 12, 2025
CVE-2025-53739 Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized… 7.8 High Aug 12, 2025
CVE-2025-53738 Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Aug 12, 2025
CVE-2025-53737 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Aug 12, 2025
CVE-2025-53736 Buffer over-read in Microsoft Office Word allows an unauthorized attacker to disclose information locally 6.8 Medium Aug 12, 2025
CVE-2025-53735 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Aug 12, 2025
CVE-2025-53734 Use after free in Microsoft Office Visio allows an unauthorized attacker to execute code locally 7.8 High Aug 12, 2025
CVE-2025-53733 Incorrect conversion between numeric types in Microsoft Office Word allows an unauthorized attacker to execute code… 8.4 High Aug 12, 2025
CVE-2025-53731 Use after free in Microsoft Office allows an unauthorized attacker to execute code locally 8.4 High Aug 12, 2025
CVE-2025-53761 Use after free in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally 7.8 High Aug 12, 2025
CVE-2025-53741 Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Aug 12, 2025
CVE-2025-53759 Use of uninitialized resource in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Aug 12, 2025
CVE-2025-53730 Use after free in Microsoft Office Visio allows an unauthorized attacker to execute code locally 7.8 High Aug 12, 2025
CVE-2025-49705 Heap-based buffer overflow in Microsoft Office PowerPoint allows an unauthorized attacker to execute code locally 7.8 High Jul 8, 2025
CVE-2025-49703 Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Jul 8, 2025
CVE-2025-49702 Access of resource using incompatible type ('type confusion') in Microsoft Office allows an unauthorized attacker to… 7.8 High Jul 8, 2025
CVE-2025-49700 Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Jul 8, 2025
CVE-2025-49699 Use after free in Microsoft Office allows an unauthorized attacker to execute code locally 7.0 High Jul 8, 2025
CVE-2025-49698 Use after free in Microsoft Office Word allows an unauthorized attacker to execute code locally 7.8 High Jul 8, 2025
CVE-2025-49697 Heap-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally 8.4 High Jul 8, 2025
CVE-2025-49696 Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally 8.4 High Jul 8, 2025
CVE-2025-49695 Use after free in Microsoft Office allows an unauthorized attacker to execute code locally 8.4 High Jul 8, 2025
CVE-2025-49711 Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally 7.8 High Jul 8, 2025
CVE-2025-48812 Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally 5.5 Medium Jul 8, 2025

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