# RHSA-2023:6916: Security update for 8 packages

RHSA-2023:6916, released November 14, 2023, fixes 1 CVE across 8 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2023-6916
- Platform: Linux
- Released: Nov 14, 2023
- Priority: High (Closes CVE-2023-1393, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2023:6916

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [xorg-x11-server-Xdmx](https://patchblox.com/security/data/product/linux/xorg-x11-server-xdmx.md) | RHEL 8 | 0:1.20.11-17.el8 |
| [xorg-x11-server-Xephyr](https://patchblox.com/security/data/product/linux/xorg-x11-server-xephyr.md) | RHEL 8 | 0:1.20.11-17.el8 |
| [xorg-x11-server-Xnest](https://patchblox.com/security/data/product/linux/xorg-x11-server-xnest.md) | RHEL 8 | 0:1.20.11-17.el8 |
| [xorg-x11-server-Xorg](https://patchblox.com/security/data/product/linux/xorg-x11-server-xorg.md) | RHEL 8 | 0:1.20.11-17.el8 |
| [xorg-x11-server-Xvfb](https://patchblox.com/security/data/product/linux/xorg-x11-server-xvfb.md) | RHEL 8 | 0:1.20.11-17.el8 |
| [xorg-x11-server-common](https://patchblox.com/security/data/product/linux/xorg-x11-server-common.md) | RHEL 8 | 0:1.20.11-17.el8 |
| [xorg-x11-server-devel](https://patchblox.com/security/data/product/linux/xorg-x11-server-devel.md) | RHEL 8 | 0:1.20.11-17.el8 |
| [xorg-x11-server-source](https://patchblox.com/security/data/product/linux/xorg-x11-server-source.md) | RHEL 8 | 0:1.20.11-17.el8 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2023-1393](https://patchblox.com/security/data/cve/CVE-2023-1393.md) | High | tigervnc-server-module: Virtual Network Computing (VNC) is a remote display system which allows users to view a computing desktop environment... | 7.8 | 0.0038 |  |

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Data as of 2026-11-07T12:40:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo