Is CVE-2026-110838 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-110838?

CVE-2026-110838 has a CVSS v3 severity of HIGH (7.5).

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CVE-2026-110838

Description

FreeRDP shadow server from 3.0.0 before 3.32.0 dispatches input PDUs during the Confirm Active state before authentication, allowing unauthenticated attackers to inject keyboard input. Attackers can negotiate TLS-only RDP and send an input PDU without Confirm Active to inject synthetic keystrokes into the host user's X11 session via XTEST.