# KB4491476: March 2019 security update

KB4491476, released March 12, 2019, fixes 1 CVE in UbuntuServer:18.04-LTS. None of them is reported as exploited. Patch Radar priority: Routine. The product is no longer supported.

- Web page: https://patchblox.com/security/fix/microsoft/kb4491476
- Platform: Microsoft
- Released: Mar 12, 2019
- Priority: Routine (Closes CVE-2019-0816)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://support.microsoft.com/help/4491476

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [UbuntuServer:18.04-LTS](https://patchblox.com/security/data/product/microsoft/ubuntuserver-18.04-lts.md) |  |  |

## CVEs this fix closes

| CVE | Priority | Component | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2019-0816](https://patchblox.com/security/data/cve/CVE-2019-0816.md) | Routine | Azure | 5.4 | 0.0140 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo