# KB5002916: September 2026 security update

KB5002916, released September 8, 2026, fixes 18 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/microsoft/kb5002916
- Platform: Microsoft
- Released: Sep 8, 2026
- Priority: Urgent (Closes CVE-2026-81955, rated Critical)
- CVEs: 18, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/5002916

## 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) |  |  |
| [Microsoft Word 2016 (32-bit edition)](https://patchblox.com/security/data/product/microsoft/microsoft-word-2016-32-bit-edition.md) |  |  |
| [Microsoft Word 2016 (64-bit edition)](https://patchblox.com/security/data/product/microsoft/microsoft-word-2016-64-bit-edition.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-81955](https://patchblox.com/security/data/cve/CVE-2026-81955.md) | Urgent | Microsoft Graphics Component | 8.8 | 0.0084 |  |
| [CVE-2026-69285](https://patchblox.com/security/data/cve/CVE-2026-69285.md) | Urgent | Microsoft Office | 8.8 | 0.0082 |  |
| [CVE-2026-78505](https://patchblox.com/security/data/cve/CVE-2026-78505.md) | Urgent | Microsoft Office | 8.8 | 0.0082 |  |
| [CVE-2026-81952](https://patchblox.com/security/data/cve/CVE-2026-81952.md) | Urgent | Microsoft Office Word | 8.8 | 0.0082 |  |
| [CVE-2026-78510](https://patchblox.com/security/data/cve/CVE-2026-78510.md) | Urgent | Microsoft Office | 8.4 | 0.0037 |  |
| [CVE-2026-69442](https://patchblox.com/security/data/cve/CVE-2026-69442.md) | High | Microsoft Office | 8.8 | 0.0082 |  |
| [CVE-2026-69764](https://patchblox.com/security/data/cve/CVE-2026-69764.md) | High | Microsoft Office Word | 8.8 | 0.0082 |  |
| [CVE-2026-78524](https://patchblox.com/security/data/cve/CVE-2026-78524.md) | High | Microsoft Office | 8.8 | 0.0082 |  |
| [CVE-2026-69626](https://patchblox.com/security/data/cve/CVE-2026-69626.md) | Routine | Microsoft Office | 6.5 | 0.0092 |  |
| [CVE-2026-69734](https://patchblox.com/security/data/cve/CVE-2026-69734.md) | Routine | Microsoft Office Word | 6.5 | 0.0092 |  |
| [CVE-2026-69739](https://patchblox.com/security/data/cve/CVE-2026-69739.md) | Routine | Microsoft Office | 6.5 | 0.0092 |  |
| [CVE-2026-72974](https://patchblox.com/security/data/cve/CVE-2026-72974.md) | Routine | Microsoft Office Excel | 6.5 | 0.0092 |  |
| [CVE-2026-78515](https://patchblox.com/security/data/cve/CVE-2026-78515.md) | Routine | Microsoft Office Excel | 6.5 | 0.0092 |  |
| [CVE-2026-80087](https://patchblox.com/security/data/cve/CVE-2026-80087.md) | Routine | Microsoft Office | 6.5 | 0.0092 |  |
| [CVE-2026-80088](https://patchblox.com/security/data/cve/CVE-2026-80088.md) | Routine | Microsoft Office Word | 6.5 | 0.0092 |  |
| [CVE-2026-80089](https://patchblox.com/security/data/cve/CVE-2026-80089.md) | Routine | Microsoft Office | 6.5 | 0.0092 |  |
| [CVE-2026-80091](https://patchblox.com/security/data/cve/CVE-2026-80091.md) | Routine | Microsoft Office | 6.5 | 0.0092 |  |
| [CVE-2026-64918](https://patchblox.com/security/data/cve/CVE-2026-64918.md) | Routine | Microsoft Office | 6.5 | 0.0087 |  |

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Data as of 2026-11-07T18:46:35Z 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

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