Known vulnerabilities in Microsoft 365 Apps for Enterprise
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2026-26113 | Untrusted pointer dereference in Microsoft Office allows an unauthorized attacker to execute code locally | 8.4 High | Mar 10, 2026 |
| 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-2026-21511 | Deserialization of untrusted data in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a… | 7.5 High | Feb 10, 2026 |
| CVE-2026-21514 | Exploited Microsoft Office Word Reliance on Untrusted Inputs in a Security Decision Vulnerability | 7.8 High | 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-2026-21260 | Exposure of sensitive information to an unauthorized actor in Microsoft Office Outlook allows an unauthorized attacker… | 7.5 High | 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-2026-21509 | Exploited Microsoft Office Security Feature Bypass Vulnerability | 7.8 High | Jan 26, 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-2026-20952 | Use after free in Microsoft Office allows an unauthorized attacker to execute code locally | 8.4 High | Jan 13, 2026 |
| CVE-2026-20949 | Improper access control in Microsoft Office Excel allows an unauthorized attacker to bypass a security feature 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-2026-20948 | Untrusted pointer dereference in Microsoft Office Word allows an unauthorized attacker to execute code locally | 7.8 High | Jan 13, 2026 |
| CVE-2026-20956 | Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Jan 13, 2026 |
| CVE-2026-20953 | Use after free in Microsoft Office allows an unauthorized attacker to execute code locally | 8.4 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-2026-20946 | Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Jan 13, 2026 |
| CVE-2026-20944 | Out-of-bounds read in Microsoft Office Word allows an unauthorized attacker to execute code locally | 8.4 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-2025-62559 | 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-2025-62557 | Use after free in Microsoft Office allows an unauthorized attacker to execute code locally | 8.4 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 |
| CVE-2025-62556 | Untrusted pointer dereference in Microsoft Office Excel allows an unauthorized attacker to execute code locally | 7.8 High | Dec 9, 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