Bug 2533942 (CVE-2026-91947) - CVE-2026-91947 FreeRDP: FreeRDP: Use-after-free vulnerability in DRDYNVC parser leads to memory corruption
Summary: CVE-2026-91947 FreeRDP: FreeRDP: Use-after-free vulnerability in DRDYNVC pars...
Keywords:
Status: NEW
Alias: CVE-2026-91947
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2534065 2534066
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-15 15:52 UTC by OSIDB Bzimport
Modified: 2026-09-15 18:15 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-09-15 15:52:07 UTC 
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.
Note You need to log in before you can comment on or make changes to this bug.