# DSA-5872-1: xorg-server security update

DSA-5872-1, released February 28, 2025, fixes 1 CVE in xorg-server (version 2:21.1.7-3+deb12u9). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/dsa-5872-1
- Platform: Linux
- Released: Feb 28, 2025
- Priority: High (Closes CVE-2025-26594, high severity)
- CVEs: 1, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://security-tracker.debian.org/tracker/CVE-2025-26594

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [xorg-server](https://patchblox.com/security/data/product/linux/xorg-server.md) | Debian 12.15 (bookworm) | 2:21.1.7-3+deb12u9 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-26594](https://patchblox.com/security/data/cve/CVE-2025-26594.md) | High | xserver-xephyr: A use-after-free flaw was found in X.Org and Xwayland | 7.8 | 0.0039 |  |

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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo