# RHSA-2025:7458: xorg-x11-server-Xwayland security update

RHSA-2025:7458, released February 25, 2025, fixes 8 CVEs in xorg-x11-server-Xwayland (version 24.1.5-3.el10_0). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2025-7458
- Platform: Linux
- Released: Feb 25, 2025
- Priority: High (Closes CVE-2025-26597, high severity)
- CVEs: 8, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2025:7458

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [xorg-x11-server-Xwayland](https://patchblox.com/security/data/product/linux/xorg-x11-server-xwayland.md) | RHEL 10 | 24.1.5-3.el10_0 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-26597](https://patchblox.com/security/data/cve/CVE-2025-26597.md) | High | xnest: A buffer overflow flaw was found in X.Org and Xwayland | 7.8 | 0.0044 |  |
| [CVE-2025-26595](https://patchblox.com/security/data/cve/CVE-2025-26595.md) | High | xnest: A buffer overflow flaw was found in X.Org and Xwayland | 7.8 | 0.0044 |  |
| [CVE-2025-26596](https://patchblox.com/security/data/cve/CVE-2025-26596.md) | High | xnest: A heap overflow flaw was found in X.Org and Xwayland | 7.8 | 0.0044 |  |
| [CVE-2025-26598](https://patchblox.com/security/data/cve/CVE-2025-26598.md) | High | xnest: An out-of-bounds write flaw was found in X.Org and Xwayland | 7.8 | 0.0041 |  |
| [CVE-2025-26599](https://patchblox.com/security/data/cve/CVE-2025-26599.md) | High | xnest: An access to an uninitialized pointer flaw was found in X.Org and Xwayland.The function compCheckRedirect() may fail... | 7.8 | 0.0041 |  |
| [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 |  |
| [CVE-2025-26600](https://patchblox.com/security/data/cve/CVE-2025-26600.md) | High | xorg-server-source: A use-after-free flaw was found in X.Org and Xwayland | 7.8 | 0.0039 |  |
| [CVE-2025-26601](https://patchblox.com/security/data/cve/CVE-2025-26601.md) | High | xnest: A use-after-free flaw was found in X.Org and Xwayland | 7.8 | 0.0039 |  |

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Data as of 2026-11-07T18:46:35Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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