Skip to content
Critical CVEs Affect Fedora Xwayland and X.Org X11 Server

Critical CVEs Affect Fedora Xwayland and X.Org X11 Server

First seen 24 Apr 2026, 07:55 UTC • •
API

Article Content

Browse articles
ThreatCluster AI
ThreatCluster •April 25, 2026 at 07:48 UTC

On April 14, 2026, critical updates were released for Fedora 43's Xwayland and Fedora 42's X.Org X11 server, addressing multiple vulnerabilities. The updates include fixes for CVE-2026-33999, CVE-2026-34000, CVE-2026-34001, CVE-2026-34002, and CVE-2026-34003, all published on April 23, 2026. These vulnerabilities could potentially allow attackers to exploit the X server environments, affecting users running Fedora distributions. The updates can be installed using the 'dnf' package manager. Security professionals are advised to apply these updates promptly to mitigate risks associated with these vulnerabilities. The affected software versions include Xwayland 24.1.10 and xserver 21.1.22. The scope of impact includes all users of the affected Fedora versions. Current status indicates that the vulnerabilities are patched, but users must ensure they update their systems.

Start a free Starter trial for enhanced analysis

Ask AI about this cluster

Updated 140d ago How this analysis works

Timeline

2026-04-14
Updates released for Xwayland and X.Org X11 server
2026-04-23
CVE-2026-33999, CVE-2026-34000, CVE-2026-34001, CVE-2026-34002, CVE-2026-34003 published
2026-04-24
Articles published detailing the vulnerabilities and fixes

More articles in this cluster (3)

Following this threat?

Track Fedora and CVE-2026-33999 in your own feed — you're alerted when they show up in new reporting, leak sites or exploitation.

Free account · no card needed

Extracted Entities (9)

1 / 2