Bug 2442757 (CVE-2026-25953) - CVE-2026-25953 freerdp: FreeRDP: Denial of Service due to use-after-free vulnerability in window handling
Summary: CVE-2026-25953 freerdp: FreeRDP: Denial of Service due to use-after-free vuln...
Keywords:
Status: NEW
Alias: CVE-2026-25953
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
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Depends On: 2442822 2442824 2442827 2442841 2442848
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-25 21:04 UTC by OSIDB Bzimport
Modified: 2026-02-25 23:14 UTC (History)
0 users

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Description OSIDB Bzimport 2026-02-25 21:04:04 UTC 
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_AppUpdateWindowFromSurface` reads from a freed `xfAppWindow` because the RDPGFX DVC thread obtains a bare pointer via `xf_rail_get_window` without any lifetime protection, while the main thread can concurrently delete the window through a fastpath window-delete order. Version 3.23.0 fixes the issue.
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