FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a malicious RDP server can trigger a heap-buffer-overflow write in the FreeRDP client when processing Audio Input (AUDIN) format lists. audin_process_formats reuses callback->formats_count across multiple MSG_SNDIN_FORMATS PDUs and writes past the newly allocated formats array, causing memory corruption and a crash. This vulnerability is fixed in 3.20.1.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade libwinprUpgrade libwinpr-develUpgrade freerdpUpgrade freerdp-libsUpgrade freerdp-devel | Apr 3, 2026 | Apr 1, 2026 |
| Alpine Linux | — | Upgrade freerdp | Feb 10, 2026 | Jan 14, 2026 |
| Amazon Linux Ami 2 | — | Upgrade freerdp-develUpgrade freerdp-debuginfoUpgrade freerdp-libsUpgrade libwinprUpgrade freerdpUpgrade libwinpr-devel | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade freerdpUpgrade freerdp-develUpgrade libwinprUpgrade freerdp-server-debuginfoUpgrade freerdp-debuginfoUpgrade freerdp-debugsourceUpgrade freerdp-libs-debuginfoUpgrade freerdp-serverUpgrade libwinpr-debuginfoUpgrade libwinpr-develUpgrade freerdp-libs | Feb 20, 2026 | Jan 14, 2026 |
| Debian | — | Upgrade freerdp3 | Jul 23, 2026 | Jul 23, 2026 |
| Oracle_linux | — | Upgrade freerdpUpgrade freerdp-develUpgrade libwinpr-develUpgrade freerdp-serverUpgrade freerdp-libsUpgrade libwinpr | Apr 2, 2026 | Jan 14, 2026 |
| Redhat_linux | — | Upgrade freerdpUpgrade libwinpr-develUpgrade freerdp-server-debuginfoUpgrade libwinpr-debuginfoUpgrade libwinprUpgrade freerdp-libs-debuginfoUpgrade freerdp-debugsourceUpgrade freerdp-serverNo solution existsUpgrade freerdp-develUpgrade freerdp-libsUpgrade freerdp-debuginfo | Apr 2, 2026 | Jan 14, 2026 |
| Rocky_linux | — | Upgrade libwinpr-develUpgrade libwinprUpgrade freerdp-debuginfoUpgrade freerdpUpgrade freerdp-server-debuginfoUpgrade freerdp-serverUpgrade freerdp-libs-debuginfoUpgrade freerdp-libsUpgrade freerdp-develUpgrade freerdp-debugsourceUpgrade libwinpr-debuginfo | Apr 8, 2026 | Apr 7, 2026 |
| Suse | — | Upgrade rdtk0-develUpgrade libfreerdp-server-proxy3-3Upgrade freerdp2Upgrade freerdp-proxyUpgrade librdtk0-0Upgrade winpr-develUpgrade freerdp-develUpgrade uwac0-0-develUpgrade uwac0-develUpgrade freerdpUpgrade freerdp-sdlUpgrade freerdp-waylandUpgrade freerdp2-develUpgrade freerdp-proxy-pluginsUpgrade freerdp2-proxyUpgrade freerdp-serverUpgrade libfreerdp2-2Upgrade freerdp2-serverUpgrade libfreerdp3-3Upgrade winpr2-develUpgrade libwinpr3-3Upgrade libuwac0-0Upgrade libwinpr2-2 | Feb 2, 2026 | Jan 30, 2026 |
| Ubuntu | — | Upgrade libfreerdp3-3 | Mar 19, 2026 | Jan 14, 2026 |
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