This page tracks the Ubuntu fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-121953 →
Unrated
FreeRDP before 3.32.2 has a use-after-free in the client's rdpgfx dynamic virtual channel: a duplicate-name channel with a new ChannelId overwrites th...
UBUNTU-CVE-2026-121953
First seen on SecPulse
Affected packages
| Ecosystem | Package | Affected | Fixed |
|---|---|---|---|
| Ubuntu:16.04:LTS | freerdp |
All versions |
— |
| Ubuntu:18.04:LTS | freerdp |
All versions |
— |
Original description The description as published by the source.
FreeRDP before 3.32.2 has a use-after-free in the client's rdpgfx dynamic virtual channel: a duplicate-name channel with a new ChannelId overwrites the listener's single callback slot, which rdpgfx_on_close frees without clearing. A malicious RDP server can open and close such a channel, then send a PDU on the original channel to crash the client or potentially execute code.
Source: OSV.dev (Open Source Vulnerabilities) OSV
References
- report ubuntu.com
- report cve.org