# KB5002884: July 2026 security update

KB5002884, released July 14, 2026, fixes 56 CVEs in Office Online Server. None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/microsoft/kb5002884
- Platform: Microsoft
- Released: Jul 14, 2026
- Priority: Urgent (Closes CVE-2026-68816, rated Critical)
- CVEs: 56, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/5002884

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Office Online Server](https://patchblox.com/security/data/product/microsoft/office-online-server.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-68794](https://patchblox.com/security/data/cve/CVE-2026-68794.md) | Urgent | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-68804](https://patchblox.com/security/data/cve/CVE-2026-68804.md) | Urgent | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-68816](https://patchblox.com/security/data/cve/CVE-2026-68816.md) | Urgent | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-65807](https://patchblox.com/security/data/cve/CVE-2026-65807.md) | High | Microsoft Office Excel | 8.8 | 0.0082 |  |
| [CVE-2026-55122](https://patchblox.com/security/data/cve/CVE-2026-55122.md) | High | Microsoft Office Excel | 7.1 | 0.0053 |  |
| [CVE-2026-47642](https://patchblox.com/security/data/cve/CVE-2026-47642.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-50675](https://patchblox.com/security/data/cve/CVE-2026-50675.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-54131](https://patchblox.com/security/data/cve/CVE-2026-54131.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55024](https://patchblox.com/security/data/cve/CVE-2026-55024.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55025](https://patchblox.com/security/data/cve/CVE-2026-55025.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55029](https://patchblox.com/security/data/cve/CVE-2026-55029.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55031](https://patchblox.com/security/data/cve/CVE-2026-55031.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55036](https://patchblox.com/security/data/cve/CVE-2026-55036.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55037](https://patchblox.com/security/data/cve/CVE-2026-55037.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55039](https://patchblox.com/security/data/cve/CVE-2026-55039.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55041](https://patchblox.com/security/data/cve/CVE-2026-55041.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55044](https://patchblox.com/security/data/cve/CVE-2026-55044.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55048](https://patchblox.com/security/data/cve/CVE-2026-55048.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55053](https://patchblox.com/security/data/cve/CVE-2026-55053.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55058](https://patchblox.com/security/data/cve/CVE-2026-55058.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55131](https://patchblox.com/security/data/cve/CVE-2026-55131.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55136](https://patchblox.com/security/data/cve/CVE-2026-55136.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55137](https://patchblox.com/security/data/cve/CVE-2026-55137.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55141](https://patchblox.com/security/data/cve/CVE-2026-55141.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55899](https://patchblox.com/security/data/cve/CVE-2026-55899.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55947](https://patchblox.com/security/data/cve/CVE-2026-55947.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55948](https://patchblox.com/security/data/cve/CVE-2026-55948.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55949](https://patchblox.com/security/data/cve/CVE-2026-55949.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-58618](https://patchblox.com/security/data/cve/CVE-2026-58618.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-68793](https://patchblox.com/security/data/cve/CVE-2026-68793.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-68795](https://patchblox.com/security/data/cve/CVE-2026-68795.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-68796](https://patchblox.com/security/data/cve/CVE-2026-68796.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-68801](https://patchblox.com/security/data/cve/CVE-2026-68801.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-68803](https://patchblox.com/security/data/cve/CVE-2026-68803.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-68805](https://patchblox.com/security/data/cve/CVE-2026-68805.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-68806](https://patchblox.com/security/data/cve/CVE-2026-68806.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-68810](https://patchblox.com/security/data/cve/CVE-2026-68810.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-68811](https://patchblox.com/security/data/cve/CVE-2026-68811.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-68812](https://patchblox.com/security/data/cve/CVE-2026-68812.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-68814](https://patchblox.com/security/data/cve/CVE-2026-68814.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-68815](https://patchblox.com/security/data/cve/CVE-2026-68815.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-68817](https://patchblox.com/security/data/cve/CVE-2026-68817.md) | High | Microsoft Office Excel | 7.8 | 0.0047 |  |
| [CVE-2026-55054](https://patchblox.com/security/data/cve/CVE-2026-55054.md) | Routine | Microsoft Office Excel | 6.5 | 0.0092 |  |
| [CVE-2026-70327](https://patchblox.com/security/data/cve/CVE-2026-70327.md) | Routine | Microsoft Office Excel | 6.5 | 0.0092 |  |
| [CVE-2026-70328](https://patchblox.com/security/data/cve/CVE-2026-70328.md) | Routine | Microsoft Office Excel | 6.5 | 0.0092 |  |
| [CVE-2026-48580](https://patchblox.com/security/data/cve/CVE-2026-48580.md) | Routine | Microsoft Office Excel | 5.5 | 0.0054 |  |
| [CVE-2026-50408](https://patchblox.com/security/data/cve/CVE-2026-50408.md) | Routine | Microsoft Office Excel | 5.5 | 0.0054 |  |
| [CVE-2026-55046](https://patchblox.com/security/data/cve/CVE-2026-55046.md) | Routine | Microsoft Office Excel | 5.5 | 0.0054 |  |
| [CVE-2026-55138](https://patchblox.com/security/data/cve/CVE-2026-55138.md) | Routine | Microsoft Office Excel | 5.5 | 0.0054 |  |
| [CVE-2026-68797](https://patchblox.com/security/data/cve/CVE-2026-68797.md) | Routine | Microsoft Office Excel | 5.5 | 0.0054 |  |
| [CVE-2026-68799](https://patchblox.com/security/data/cve/CVE-2026-68799.md) | Routine | Microsoft Office Excel | 5.5 | 0.0054 |  |
| [CVE-2026-68802](https://patchblox.com/security/data/cve/CVE-2026-68802.md) | Routine | Microsoft Office Excel | 5.5 | 0.0054 |  |
| [CVE-2026-68808](https://patchblox.com/security/data/cve/CVE-2026-68808.md) | Routine | Microsoft Office Excel | 5.5 | 0.0054 |  |
| [CVE-2026-55898](https://patchblox.com/security/data/cve/CVE-2026-55898.md) | Routine | Microsoft Office Excel | 6.1 | 0.0047 |  |
| [CVE-2026-50678](https://patchblox.com/security/data/cve/CVE-2026-50678.md) | Routine | Microsoft Office Excel | 6.6 | 0.0047 |  |
| [CVE-2026-54988](https://patchblox.com/security/data/cve/CVE-2026-54988.md) | Routine | Microsoft Office Excel | 6.1 | 0.0046 |  |

---

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