Bug 2442754 (CVE-2026-25955) - CVE-2026-25955 freerdp: FreeRDP: Denial of Service via use-after-free in xf_AppUpdateWindowFromSurface
Summary: CVE-2026-25955 freerdp: FreeRDP: Denial of Service via use-after-free in xf_A...
Keywords:
Status: NEW
Alias: CVE-2026-25955
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:
Whiteboard:
Depends On: 2442853 2442856 2442858 2442864 2442862
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-25 21:03 UTC by OSIDB Bzimport
Modified: 2026-02-25 23:15 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-02-25 21:03:37 UTC 
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, `xf_AppUpdateWindowFromSurface` reuses a cached `XImage` whose `data` pointer references a freed RDPGFX surface buffer, because `gdi_DeleteSurface` frees `surface->data` without invalidating the `appWindow->image` that aliases it. Version 3.23.0 fixes the issue.
Note You need to log in before you can comment on or make changes to this bug.