KB5002881: what it fixes and who gets it
KB5002881 is a security update from Microsoft's June 2026 release for Microsoft SharePoint Enterprise Server 2016.
Microsoft data read
Should you install it?
Yes. It closes holes Microsoft rates Critical, the most serious rating it uses. Windows Update installs it automatically on supported home PCs.
If the installation fails or the PC misbehaves afterwards, note the exact error code first: the fix depends on it. Our update troubleshooting guides are linked on this page.
Security fixes in KB5002881
| CVE | Type | CVSS | Severity |
|---|---|---|---|
| CVE-2026-45456Microsoft Outlook and Word Remote Code Execution Vulnerability | Remote Code Execution | 8.4 | Critical |
| CVE-2026-45458Microsoft Outlook and Word Remote Code Execution Vulnerability | Remote Code Execution | 8.4 | Critical |
| CVE-2026-44819Microsoft Office Remote Code Execution Vulnerability | Remote Code Execution | 7.8 | Important |
| CVE-2026-44824Microsoft Office Remote Code Execution Vulnerability | Remote Code Execution | 7.8 | Important |
| CVE-2026-45471Microsoft Word Remote Code Execution Vulnerability | Remote Code Execution | 7.8 | Important |
| CVE-2026-45475Microsoft Office Remote Code Execution Vulnerability | Remote Code Execution | 7.8 | Important |
| CVE-2026-44821Microsoft Office Information Disclosure Vulnerability | Information Disclosure | 5.5 | Important |
| CVE-2026-45485Microsoft Office Information Disclosure Vulnerability | Information Disclosure | 3.3 | Important |
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