FreeRDP server versions before 3.31.0 contain a use-after-free vulnerability in the DRDYNVC parser that dereferences a channel pointer after releasing the synchronization lock. Authenticated clients can race AUDIN channel closure messages against DRDYNVC data parsing to trigger heap-use-after-free when accessing freed channel objects.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade freerdp-debugsourceUpgrade freerdp-develUpgrade freerdp-debuginfoUpgrade freerdp-server-debuginfoUpgrade freerdpUpgrade freerdp-libs-debuginfoUpgrade libwinpr-develUpgrade freerdp-serverUpgrade libwinpr-debuginfoUpgrade freerdp-libsUpgrade libwinpr | Sep 30, 2026 | Sep 15, 2026 |
| Redhat_linux | — | Upgrade libwinpr-develUpgrade freerdp-libsUpgrade freerdp-serverUpgrade freerdp-libs-debuginfoUpgrade freerdp-debugsourceUpgrade freerdp-develUpgrade freerdp-debuginfoUpgrade freerdpUpgrade freerdp-server-debuginfoUpgrade libwinprUpgrade libwinpr-debuginfoNo solution exists | Sep 17, 2026 | Sep 15, 2026 |
| Rocky_linux | — | Upgrade libwinpr-debuginfoUpgrade freerdp-libsUpgrade freerdp-libs-debuginfoUpgrade freerdp-serverUpgrade libwinprUpgrade freerdp-server-debuginfoUpgrade libwinpr-develUpgrade freerdp-develUpgrade freerdp-debugsourceUpgrade freerdp-debuginfoUpgrade freerdp | Oct 8, 2026 | Oct 6, 2026 |
| Ubuntu | — | Upgrade freerdp3 | Sep 22, 2026 | Sep 16, 2026 |
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