CVE-2026-50263
A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow(). A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure.
- Affected products
- Rocky Linux, X.Org Server, Xwayland
- X.org X Server
- < 21.1.23
- X.org Xwayland
- < 24.1.12
- Redhat Enterprise Linux
- = 7.0, 8.0, 9.0, 10.0
- CVSS 3.1
- 5.5 MEDIUM
- EPSS
- 0.1% (4th percentile)
- Weakness
- CWE-416
- NVD status
- Modified
- Published
- 2026-06-05
CVE-2026-50263 at NVD
No indexed exploits for CVE-2026-50263 yet
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No exploit for CVE-2026-50263 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.