Vulnerabilities of Microsoft Office Online Server
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-26112 | Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Mar 10, 2026 |
| CVE-2026-21261 | Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally | 5.5 Medium | Feb 10, 2026 |
| CVE-2026-21258 | Improper input validation in Microsoft Office Excel allows an unauthorized attacker to disclose information locally | 5.5 Medium | Feb 10, 2026 |
| CVE-2026-21259 | Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to elevate privileges locally | 7.8 High | Feb 10, 2026 |
| CVE-2026-20957 | Integer underflow (wrap or wraparound) in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Jan 13, 2026 |
| CVE-2026-20950 | Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Jan 13, 2026 |
| CVE-2026-20955 | Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Jan 13, 2026 |
| CVE-2025-62560 | Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Dec 9, 2025 |
| CVE-2025-62556 | Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Dec 9, 2025 |
| CVE-2025-62564 | Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Dec 9, 2025 |
| CVE-2025-62563 | Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Dec 9, 2025 |
| CVE-2025-62561 | Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Dec 9, 2025 |
| CVE-2025-62203 | Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Nov 11, 2025 |
| CVE-2025-62202 | Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally | 7.1 High | Nov 11, 2025 |
| CVE-2025-62201 | Heap-based buffer overflow in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Nov 11, 2025 |
| CVE-2025-62200 | Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Nov 11, 2025 |
| CVE-2025-60727 | Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Nov 11, 2025 |
| CVE-2025-60726 | Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally | 7.1 High | Nov 11, 2025 |
| CVE-2025-59232 | Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally | 7.1 High | Oct 14, 2025 |
| CVE-2025-59225 | Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Oct 14, 2025 |
| CVE-2025-59224 | Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Oct 14, 2025 |
| CVE-2025-59223 | Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Oct 14, 2025 |
| CVE-2025-59236 | Use after free in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 8.4 High | Oct 14, 2025 |
| CVE-2025-59235 | Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information locally | 7.1 High | Oct 14, 2025 |
| CVE-2025-59233 | Access of resource using incompatible type ('type confusion') in Microsoft Office Excel allows an unauthorized… | 7.8 High | Oct 14, 2025 |
Other Microsoft products
Windows Server 2019 5745
Windows Server 2019 (Server Core installation) 5648
Windows 10 Version 1809 5349
Windows Server 2022 5112
Windows Server 2016 5051
Windows Server 2016 (Server Core installation) 4847
Windows 10 Version 21H2 4539
Windows 10 Version 1607 4535
Windows Server 2012 R2 4103
Windows 10 Version 22H2 4041
Windows Server 2012 R2 (Server Core installation) 3958
Windows Server 2012 3865