# KB4092041: May 2018 security update

KB4092041, released May 8, 2018, fixes 5 CVEs across 5 products. 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/kb4092041
- Platform: Microsoft
- Released: May 8, 2018
- Priority: Urgent (Closes CVE-2018-8154, rated Critical)
- CVEs: 5, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/4092041

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [Microsoft Exchange Server 2013 Cumulative Update 19](https://patchblox.com/security/data/product/microsoft/microsoft-exchange-server-2013-cumulative-update-19.md) |  |  |
| [Microsoft Exchange Server 2013 Cumulative Update 20](https://patchblox.com/security/data/product/microsoft/microsoft-exchange-server-2013-cumulative-update-20.md) |  |  |
| [Microsoft Exchange Server 2013 Service Pack 1](https://patchblox.com/security/data/product/microsoft/microsoft-exchange-server-2013-service-pack-1.md) |  |  |
| [Microsoft Exchange Server 2016 Cumulative Update 8](https://patchblox.com/security/data/product/microsoft/microsoft-exchange-server-2016-cumulative-update-8.md) |  |  |
| [Microsoft Exchange Server 2016 Cumulative Update 9](https://patchblox.com/security/data/product/microsoft/microsoft-exchange-server-2016-cumulative-update-9.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2018-8154](https://patchblox.com/security/data/cve/CVE-2018-8154.md) | Urgent | Microsoft Exchange Server | n/a | 0.2364 |  |
| [CVE-2018-8151](https://patchblox.com/security/data/cve/CVE-2018-8151.md) | High | Microsoft Exchange Server | n/a | 0.0870 |  |
| [CVE-2018-8152](https://patchblox.com/security/data/cve/CVE-2018-8152.md) | High | Microsoft Exchange Server | n/a | 0.0351 |  |
| [CVE-2018-8159](https://patchblox.com/security/data/cve/CVE-2018-8159.md) | High | Microsoft Exchange Server | n/a | 0.0351 |  |
| [CVE-2018-8153](https://patchblox.com/security/data/cve/CVE-2018-8153.md) | Routine | Microsoft Exchange Server | n/a | 0.0344 |  |

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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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo