# KB5002897: August 2026 security update

KB5002897, released August 11, 2026, fixes 12 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/microsoft/kb5002897
- Platform: Microsoft
- Released: Aug 11, 2026
- Priority: Urgent (Closes CVE-2026-64909, rated Critical)
- CVEs: 12, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/5002897

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft Office 2016 (32-bit edition)](https://patchblox.com/security/data/product/microsoft/microsoft-office-2016-32-bit-edition.md) |  |  |
| [Microsoft Office 2016 (64-bit edition)](https://patchblox.com/security/data/product/microsoft/microsoft-office-2016-64-bit-edition.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-63513](https://patchblox.com/security/data/cve/CVE-2026-63513.md) | Urgent | Microsoft Office | 7.8 | 0.0047 |  |
| [CVE-2026-63526](https://patchblox.com/security/data/cve/CVE-2026-63526.md) | Urgent | Microsoft Office | 7.8 | 0.0047 |  |
| [CVE-2026-63532](https://patchblox.com/security/data/cve/CVE-2026-63532.md) | Urgent | Microsoft Office | 7.8 | 0.0047 |  |
| [CVE-2026-64903](https://patchblox.com/security/data/cve/CVE-2026-64903.md) | Urgent | Microsoft Office | 7.8 | 0.0047 |  |
| [CVE-2026-64909](https://patchblox.com/security/data/cve/CVE-2026-64909.md) | Urgent | Microsoft Office | 7.8 | 0.0047 |  |
| [CVE-2026-63533](https://patchblox.com/security/data/cve/CVE-2026-63533.md) | High | Microsoft Office | 7.8 | 0.0047 |  |
| [CVE-2026-65661](https://patchblox.com/security/data/cve/CVE-2026-65661.md) | High | Microsoft Office | 7.8 | 0.0047 |  |
| [CVE-2026-63517](https://patchblox.com/security/data/cve/CVE-2026-63517.md) | Routine | Microsoft Office | 5.5 | 0.0054 |  |
| [CVE-2026-63524](https://patchblox.com/security/data/cve/CVE-2026-63524.md) | Routine | Microsoft Office | 5.5 | 0.0054 |  |
| [CVE-2026-63529](https://patchblox.com/security/data/cve/CVE-2026-63529.md) | Routine | Microsoft Office | 5.5 | 0.0054 |  |
| [CVE-2026-64899](https://patchblox.com/security/data/cve/CVE-2026-64899.md) | Routine | Microsoft Office | 5.5 | 0.0054 |  |
| [CVE-2026-70317](https://patchblox.com/security/data/cve/CVE-2026-70317.md) | Routine | Microsoft Office | 5.5 | 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