critical
CVE-2026-25953
freerdp: FreeRDP: Denial of Service due to use-after-free vulnerability in window handling
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat4.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Amazon (high), Red Hat (medium), Ubuntu (medium).
Description
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.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| alpine 3.23 | freerdp | 3.23.0-r0 |
| alpine 3.24 | freerdp | 3.23.0-r0 |
| alpine edge | freerdp | 3.23.0-r0 |
| amazon linux 2 | freerdp, freerdp-debuginfo, freerdp-devel and 3 more | 2:2.11.7-1.amzn2.0.8 |
| amazon linux 2023 | freerdp, freerdp-debuginfo, freerdp-debugsource and 8 more | 2:3.6.3-1.amzn2023.0.7 |
| debian 11 | freerdp2 | no fix listed |
| debian 12 | freerdp2 | no fix listed |
| debian 13 | freerdp3 | 3.15.0+dfsg-2.1+deb13u1 |
| debian 14 | freerdp3 | 3.23.0+dfsg-1 |
| echo | freerdp2, freerdp3 | 3.15.0+dfsg-2.1+deb13u1 |
| rapidfort alma 10 | freerdp, freerdp-devel, freerdp-libs and 3 more | no fix listed |
| rapidfort alma 8 | freerdp, freerdp-devel, freerdp-libs and 2 more | no fix listed |
Show all 107 entries from 30 sources
| Source | Package | Fixed in |
|---|---|---|
| alpine 3.23 | freerdp | 3.23.0-r0 |
| alpine 3.24 | freerdp | 3.23.0-r0 |
| alpine edge | freerdp | 3.23.0-r0 |
| amazon linux 2 | freerdp | 2:2.11.7-1.amzn2.0.8 |
| amazon linux 2 | freerdp-debuginfo | 2:2.11.7-1.amzn2.0.8 |
| amazon linux 2 | freerdp-devel | 2:2.11.7-1.amzn2.0.8 |
| amazon linux 2 | freerdp-libs | 2:2.11.7-1.amzn2.0.8 |
| amazon linux 2 | libwinpr | 2:2.11.7-1.amzn2.0.8 |
| amazon linux 2 | libwinpr-devel | 2:2.11.7-1.amzn2.0.8 |
| amazon linux 2023 | freerdp | 2:3.6.3-1.amzn2023.0.7 |
| amazon linux 2023 | freerdp-debuginfo | 2:3.6.3-1.amzn2023.0.7 |
| amazon linux 2023 | freerdp-debugsource | 2:3.6.3-1.amzn2023.0.7 |
| amazon linux 2023 | freerdp-devel | 2:3.6.3-1.amzn2023.0.7 |
| amazon linux 2023 | freerdp-libs | 2:3.6.3-1.amzn2023.0.7 |
| amazon linux 2023 | freerdp-libs-debuginfo | 2:3.6.3-1.amzn2023.0.7 |
| amazon linux 2023 | freerdp-server | 2:3.6.3-1.amzn2023.0.7 |
| amazon linux 2023 | freerdp-server-debuginfo | 2:3.6.3-1.amzn2023.0.7 |
| amazon linux 2023 | libwinpr | 2:3.6.3-1.amzn2023.0.7 |
| amazon linux 2023 | libwinpr-debuginfo | 2:3.6.3-1.amzn2023.0.7 |
| amazon linux 2023 | libwinpr-devel | 2:3.6.3-1.amzn2023.0.7 |
| debian 11 | freerdp2 | no fix listed |
| debian 12 | freerdp2 | no fix listed |
| debian 13 | freerdp3 | 3.15.0+dfsg-2.1+deb13u1 |
| debian 14 | freerdp3 | 3.23.0+dfsg-1 |
| echo | freerdp2 | no fix listed |
| echo | freerdp3 | 3.15.0+dfsg-2.1+deb13u1 |
| rapidfort alma 10 | freerdp | no fix listed |
| rapidfort alma 10 | freerdp-devel | no fix listed |
| rapidfort alma 10 | freerdp-libs | no fix listed |
| rapidfort alma 10 | freerdp-server | no fix listed |
| rapidfort alma 10 | libwinpr | no fix listed |
| rapidfort alma 10 | libwinpr-devel | no fix listed |
| rapidfort alma 8 | freerdp | no fix listed |
| rapidfort alma 8 | freerdp-devel | no fix listed |
| rapidfort alma 8 | freerdp-libs | no fix listed |
| rapidfort alma 8 | libwinpr | no fix listed |
| rapidfort alma 8 | libwinpr-devel | no fix listed |
| rapidfort alma 9 | freerdp | no fix listed |
| rapidfort alma 9 | freerdp-devel | no fix listed |
| rapidfort alma 9 | freerdp-libs | no fix listed |
| rapidfort alma 9 | libwinpr | no fix listed |
| rapidfort alma 9 | libwinpr-devel | no fix listed |
| rapidfort alpine 3.20 | freerdp | 3.23.0-r0 |
| rapidfort alpine 3.21 | freerdp | 3.23.0-r0 |
| rapidfort alpine 3.22 | freerdp | 3.23.0-r0 |
| rapidfort amazon linux 2023 | freerdp | 2:3.6.3-1.amzn2023.0.7 |
| rapidfort amazon linux 2023 | freerdp-devel | 2:3.6.3-1.amzn2023.0.7 |
| rapidfort amazon linux 2023 | freerdp-libs | 2:3.6.3-1.amzn2023.0.7 |
| rapidfort amazon linux 2023 | freerdp-server | 2:3.6.3-1.amzn2023.0.7 |
| rapidfort amazon linux 2023 | libwinpr | 2:3.6.3-1.amzn2023.0.7 |
| rapidfort amazon linux 2023 | libwinpr-devel | 2:3.6.3-1.amzn2023.0.7 |
| rapidfort debian 12 | freerdp2 | no fix listed |
| rapidfort debian 12 | freerdp3 | 0:3.15.0+dfsg-2.1+deb13u1, 0:3.23.0+dfsg-1 |
| rapidfort debian 13 | freerdp2 | no fix listed |
| rapidfort debian 13 | freerdp3 | 0:3.15.0+dfsg-2.1+deb13u1, 0:3.23.0+dfsg-1 |
| rapidfort fedora 43 | freerdp | 2:3.23.0-1.fc43 |
| rapidfort fedora 43 | freerdp-devel | 2:3.23.0-1.fc43 |
| rapidfort fedora 43 | freerdp-libs | 2:3.23.0-1.fc43 |
| rapidfort fedora 43 | freerdp-server | 2:3.23.0-1.fc43 |
| rapidfort fedora 43 | libwinpr | 2:3.23.0-1.fc43 |
| rapidfort fedora 43 | libwinpr-devel | 2:3.23.0-1.fc43 |
| rapidfort Oracle Linux 10 | freerdp | no fix listed |
| rapidfort Oracle Linux 10 | freerdp-devel | no fix listed |
| rapidfort Oracle Linux 10 | freerdp-libs | no fix listed |
| rapidfort Oracle Linux 10 | freerdp-server | no fix listed |
| rapidfort Oracle Linux 10 | libwinpr | no fix listed |
| rapidfort Oracle Linux 10 | libwinpr-devel | no fix listed |
| rapidfort Oracle Linux 9 | freerdp | no fix listed |
| rapidfort Oracle Linux 9 | freerdp-devel | no fix listed |
| rapidfort Oracle Linux 9 | freerdp-libs | no fix listed |
| rapidfort Oracle Linux 9 | libwinpr | no fix listed |
| rapidfort Oracle Linux 9 | libwinpr-devel | no fix listed |
| rapidfort Red Hat 10 | freerdp | no fix listed |
| rapidfort Red Hat 10 | freerdp-devel | no fix listed |
| rapidfort Red Hat 10 | freerdp-libs | no fix listed |
| rapidfort Red Hat 10 | freerdp-server | no fix listed |
| rapidfort Red Hat 10 | libwinpr | no fix listed |
| rapidfort Red Hat 10 | libwinpr-devel | no fix listed |
| rapidfort Red Hat 9 | freerdp | no fix listed |
| rapidfort Red Hat 9 | freerdp-devel | no fix listed |
| rapidfort Red Hat 9 | freerdp-libs | no fix listed |
| rapidfort Red Hat 9 | libwinpr | no fix listed |
| rapidfort Red Hat 9 | libwinpr-devel | no fix listed |
| rapidfort rocky 10 | freerdp | no fix listed |
| rapidfort rocky 10 | freerdp-devel | no fix listed |
| rapidfort rocky 10 | freerdp-libs | no fix listed |
| rapidfort rocky 10 | freerdp-server | no fix listed |
| rapidfort rocky 10 | libwinpr | no fix listed |
| rapidfort rocky 10 | libwinpr-devel | no fix listed |
| rapidfort rocky 8 | freerdp | no fix listed |
| rapidfort rocky 8 | freerdp-devel | no fix listed |
| rapidfort rocky 8 | freerdp-libs | no fix listed |
| rapidfort rocky 8 | libwinpr | no fix listed |
| rapidfort rocky 8 | libwinpr-devel | no fix listed |
| rapidfort rocky 9 | freerdp | no fix listed |
| rapidfort rocky 9 | freerdp-devel | no fix listed |
| rapidfort rocky 9 | freerdp-libs | no fix listed |
| rapidfort rocky 9 | libwinpr | no fix listed |
| rapidfort rocky 9 | libwinpr-devel | no fix listed |
| Red Hat | freerdp | no fix listed |
| Red Hat | freerdp-devel | no fix listed |
| Red Hat | freerdp-libs | no fix listed |
| Red Hat | freerdp-plugins | no fix listed |
| Red Hat | libwinpr | no fix listed |
| Red Hat | libwinpr-devel | no fix listed |
| ubuntu 24.04 | freerdp3 | 3.5.1+dfsg1-0ubuntu1.4 |
| ubuntu 25.10 | freerdp3 | 3.16.0+dfsg-2ubuntu0.3 |
References
- https://access.redhat.com/security/cve/CVE-2026-25953
- https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c#L1230-L1237
- https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c#L257-L290
- https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_rail.c#L643-L647
- https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_window.c#L1394-L1428
- https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_window.c#L1462-L1470
- https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/client/X11/xf_window.c#L1484-L1491
- https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/libfreerdp/gdi/gfx.c#L254-L286
All 14 references
- https://github.com/FreeRDP/FreeRDP/blob/5c7aae27d0417b42b4806c2a5c583ca39dd9ef1e/libfreerdp/gdi/gfx.c#L278-L279
- https://github.com/FreeRDP/FreeRDP/commit/1994e9844212a6dfe0ff12309fef520e888986b5
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-p6rq-rxpc-rh3p
- https://nvd.nist.gov/vuln/detail/CVE-2026-25953
- https://ubuntu.com/security/notices/USN-8105-1
- https://www.cve.org/CVERecord?id=CVE-2026-25953