This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-91947 →

DEBIAN-CVE-2026-91947

FreeRDP server versions before 3.31.0 contain a use-after-free vulnerability in the DRDYNVC parser that dereferences a channel pointer after releasing...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 freerdp2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 freerdp3

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:14 freerdp3

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.31.0+dfsg-1"}]}]

References

advisory security-tracker.debian.org