THREAT OPS › Threat News › [NVD] CVE-2026-50263 (MEDIUM 5.5) — 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.
[NVD] CVE-2026-50263 (MEDIUM 5.5) — 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.
CVE-2026-50263 CVSS: 5.5 MEDIUM Published: 2026-06-05T12:16:39.927
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.
Indicators of compromise
- CVE-2026-50263cve
Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-50263