CVE-2025-49179

CVE-2025-49179 · Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in x record extension

This page contains facts from public vulnerability sources. Check the original advisory before updating.

This page shows selected source facts. See the linked advisories for the complete description and affected versions.

A flaw was found in the X Record extension. The RecordSanityCheckRegisterClients function does not check for an integer overflow when computing request length, which allows a client to bypass length checks.

CVSS 7.3 · High · EPSS 0.3% · Fix available

Published: 2025-06-17T14:54:49.288Z
Updated: 2026-06-30T10:40:26.207Z

Stack: system

Affected products and versions

xwayland
Versions
- ≥ 0, < 24.1.7: Affected (semver)
Update to 24.1.7
red hat enterprise linux 10
Versions
- ≥ 0:24.1.5-4.el10_0: Not affected (rpm)
No fix published
red hat enterprise linux 6 extended lifecycle support - extension
Versions
- ≥ 0:1.1.0-25.el6_10.1: Not affected (rpm)
No fix published
red hat enterprise linux 7.7 advanced update support
Versions
- ≥ 0:1.8.0-17.el7_7.1: Not affected (rpm)
No fix published
red hat enterprise linux 7 extended lifecycle support
Versions
- ≥ 0:1.20.4-32.el7_9: Not affected (rpm)
No fix published
red hat enterprise linux 7 extended lifecycle support
Versions
- ≥ 0:1.8.0-36.el7_9.2: Not affected (rpm)
No fix published
red hat enterprise linux 8
Versions
- ≥ 0:1.20.11-26.el8_10: Not affected (rpm)
No fix published
red hat enterprise linux 8
Versions
- ≥ 0:21.1.3-18.el8_10: Not affected (rpm)
No fix published
red hat enterprise linux 8
Versions
- ≥ 0:1.15.0-7.el8_10: Not affected (rpm)
No fix published
red hat enterprise linux 8.2 advanced update support
Versions
- ≥ 0:1.9.0-15.el8_2.14: Not affected (rpm)
No fix published
red hat enterprise linux 8.2 advanced update support
Versions
- ≥ 0:1.20.6-4.el8_2: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 advanced mission critical update support
Versions
- ≥ 0:1.20.10-2.el8_4: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 advanced mission critical update support
Versions
- ≥ 0:1.11.0-8.el8_4.13: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 extended update support long-life add-on
Versions
- ≥ 0:1.20.10-2.el8_4: Not affected (rpm)
No fix published
red hat enterprise linux 8.4 extended update support long-life add-on
Versions
- ≥ 0:1.11.0-8.el8_4.13: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 advanced mission critical update support
Versions
- ≥ 0:1.12.0-6.el8_6.14: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 advanced mission critical update support
Versions
- ≥ 0:21.1.3-2.el8_6.4: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 advanced mission critical update support
Versions
- ≥ 0:1.20.11-5.el8_6.3: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 extended update support long-life add-on
Versions
- ≥ 0:1.12.0-6.el8_6.14: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 extended update support long-life add-on
Versions
- ≥ 0:21.1.3-2.el8_6.4: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 telecommunications update service
Versions
- ≥ 0:1.12.0-6.el8_6.14: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 telecommunications update service
Versions
- ≥ 0:21.1.3-2.el8_6.4: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 telecommunications update service
Versions
- ≥ 0:1.20.11-5.el8_6.3: Not affected (rpm)
No fix published
red hat enterprise linux 8.6 update services for sap solutions
Versions
- ≥ 0:1.12.0-6.el8_6.14: Not affected (rpm)
No fix published

Original sources

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