High · published February 9, 2026
⚡ A closed channel is still processing requests! FreeRDP versions prior to 3.22.0 have a nasty little use-after-free vulnerability that could cause chaos if exploited. 🔥 Think of it like a bar closing down for the night, but a last call still getting orders from patrons who left — the bartender serving drinks to ghosts, creating a recipe for disaster when the clock hits midnight. An attacker could potentially exploit this vulnerability to manipulate the playback system, causing unexpected behavior, crashes, or even opening the door for more severe attacks. This could lead to loss of data or remote code execution, putting your entire remote desktop experience at risk!
Think of it like a bar closing down for the night, but a last call still getting orders from patrons who left — the bartender serving drinks to ghosts, creating a recipe for disaster when the clock hits midnight. This vulnerability occurs because the RDPSND async playback thread continues to process queued Protocol Data Units (PDUs) after the channel has already been closed and its internal state has been freed, resulting in a use-after-free situation in the rdpsnd_treat_wave function.
An attacker could potentially exploit this vulnerability to manipulate the playback system, causing unexpected behavior, crashes, or even opening the door for more severe attacks. This could lead to loss of data or remote code execution, putting your entire remote desktop experience at risk! Upgrade FreeRDP to version 3.22.0 or later to patch this vulnerability immediately. It’s essential to review your deployment and ensure that all instances are running the latest version for optimal security. Don't forget to monitor your systems regularly for any unusual activity! You've got this! By following these steps, you'll secure your system and keep the remote desktop environment safe. 🛡️