# KB5002876: June 2026 security update

KB5002876, released June 9, 2026, fixes 8 CVEs in Microsoft SharePoint Server 2019. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/microsoft/kb5002876
- Platform: Microsoft
- Released: Jun 9, 2026
- Priority: Urgent (Closes CVE-2026-45458, rated Critical)
- CVEs: 8, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/5002876

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft SharePoint Server 2019](https://patchblox.com/security/data/product/microsoft/microsoft-sharepoint-server-2019.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-45456](https://patchblox.com/security/data/cve/CVE-2026-45456.md) | Urgent | Microsoft Office | 8.4 | 0.0044 |  |
| [CVE-2026-45458](https://patchblox.com/security/data/cve/CVE-2026-45458.md) | Urgent | Microsoft Office | 8.4 | 0.0044 |  |
| [CVE-2026-44819](https://patchblox.com/security/data/cve/CVE-2026-44819.md) | High | Microsoft Office | 7.8 | 0.0046 |  |
| [CVE-2026-44824](https://patchblox.com/security/data/cve/CVE-2026-44824.md) | High | Microsoft Office | 7.8 | 0.0046 |  |
| [CVE-2026-45471](https://patchblox.com/security/data/cve/CVE-2026-45471.md) | High | Microsoft Office Word | 7.8 | 0.0046 |  |
| [CVE-2026-45475](https://patchblox.com/security/data/cve/CVE-2026-45475.md) | High | Microsoft Office | 7.8 | 0.0046 |  |
| [CVE-2026-44821](https://patchblox.com/security/data/cve/CVE-2026-44821.md) | Routine | Microsoft Office | 5.5 | 0.0047 |  |
| [CVE-2026-45485](https://patchblox.com/security/data/cve/CVE-2026-45485.md) | Routine | Microsoft Office | 3.3 | 0.0044 |  |

---

Data as of 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo