freerdp3: FreeRDP before 3.32.2 contains a denial of service vulnerability in the shadow server that allows authenticated RDP c...
CVE-2026-121404 is fixed in 7 products on 1 platform, first by DEBIAN-CVE-2026-121404, released November 4, 2026. It is not reported as exploited. Patch Radar priority: Routine.
FreeRDP before 3.32.2 contains a denial of service vulnerability in the shadow server that allows authenticated RDP clients to spin server threads by sending zero-length drdynvc DATA PDUs. Attackers can send empty DATA messages on opened audin or rdpgfx channels, so that FreeRDP_WTSVirtualChannelRead never consumes them, consuming full CPU cores until disconnect.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| freerdp · RHEL 10 | 3.32.2-1.el10_2 | RHSA-2026:94514 | Nov 4, 2026 |
| freerdp · almalinux 10 | 2:3.32.2-1.el10_2 | ALSA-2026:94514 | Nov 7, 2026 |
| freerdp-devel · almalinux 10 | 2:3.32.2-1.el10_2 | ALSA-2026:94514 | Nov 7, 2026 |
| freerdp-libs · almalinux 10 | 2:3.32.2-1.el10_2 | ALSA-2026:94514 | Nov 7, 2026 |
| freerdp-server · almalinux 10 | 2:3.32.2-1.el10_2 | ALSA-2026:94514 | Nov 7, 2026 |
| freerdp3 · Debian 14 | 3.32.2+dfsg-1 | DEBIAN-CVE-2026-121404 | Nov 4, 2026 |
| libwinpr · almalinux 10 | 2:3.32.2-1.el10_2 | ALSA-2026:94514 | Nov 7, 2026 |
| libwinpr-devel · almalinux 10 | 2:3.32.2-1.el10_2 | ALSA-2026:94514 | Nov 7, 2026 |
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