Critical severity9.8NVD Advisory· Published Feb 25, 2026· Updated Jun 17, 2026
CVE-2026-25952
CVE-2026-25952
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, xf_SetWindowMinMaxInfo dereferences a freed xfAppWindow pointer because xf_rail_get_window in xf_rail_server_min_max_info returns an unprotected pointer from the railWindows hash table, and the main thread can concurrently delete the window (via a window delete order) while the RAIL channel thread is still using the pointer. Version 3.23.0 fixes the issue.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
11- osv-coords8 versionspkg:rpm/almalinux/freerdppkg:rpm/almalinux/freerdp-develpkg:rpm/almalinux/freerdp-libspkg:rpm/almalinux/freerdp-serverpkg:rpm/almalinux/libwinprpkg:rpm/almalinux/libwinpr-develpkg:rpm/opensuse/freerdp&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/freerdp2&distro=openSUSE%20Tumbleweed
< 2:3.10.3-5.el10_1.8+ 7 more
- (no CPE)range: < 2:3.10.3-5.el10_1.8
- (no CPE)range: < 2:3.10.3-5.el10_1.8
- (no CPE)range: < 2:3.10.3-5.el10_1.8
- (no CPE)range: < 2:3.10.3-5.el10_1.8
- (no CPE)range: < 2:3.10.3-5.el10_1.8
- (no CPE)range: < 2:3.10.3-5.el10_1.8
- (no CPE)range: < 3.24.1-1.1
- (no CPE)range: < 2.11.7-8.1
Patches
Vulnerability mechanics
References
11- github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.cnvdPatch
- github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.cnvdPatch
- github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.cnvdPatch
- github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.cnvdPatch
- github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.cnvdPatch
- github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_window.cnvdPatch
- github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_window.cnvdPatch
- github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_window.cnvdPatch
- github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_window.cnvdPatch
- github.com/FreeRDP/FreeRDP/commit/1994e9844212a6dfe0ff12309fef520e888986b5nvdPatch
- github.com/FreeRDP/FreeRDP/security/advisories/GHSA-cgqm-cwjg-7w9xnvdExploitMitigationPatchVendor Advisory
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