CVE-2026-91947

A flaw was found in FreeRDP server. This use-after-free vulnerability exists in the DRDYNVC parser, where a channel pointer is dereferenced after its synchronization lock has been released. An authenticated client can exploit this by racing AUDIN channel closure messages against DRDYNVC data...

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 the synchronization lock. Authenticated clients can race AUDIN channel closure messages against DRDYNVC data parsing to trigger heap-use-after-fre...

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 the synchronization lock. Authenticated clients can race AUDIN channel closure messages against DRDYNVC data parsing to trigger heap-use-after-fre...

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 the synchronization lock. Authenticated clients can race AUDIN channel closure messages against DRDYNVC data parsing to trigger heap-use-after-fre...

UBUNTU-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 the synchronization lock. Authenticated clients can race AUDIN channel closure messages against DRDYNVC data parsing to trigger heap-use-after-fre...

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 the synchronization lock. Authenticated clients can race AUDIN channel closure messages against DRDYNVC data parsing to trigger heap-use-after-fre...

CVE-2026-91947 FreeRDP Server before 3.31.0 Use-After-Free via DRDYNVC

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-fre...

CVE-2026-91947 FreeRDP Server before 3.31.0 Use-After-Free via DRDYNVC

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-fre...

CVE-2026-91947 FreeRDP Server before 3.31.0 Use-After-Free via DRDYNVC

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-fre...

CVE-2026-91947

FreeRDP server versions before 3.31.0 contain a use-after-free vulnerability in the DRDYNVC parser , where a channel pointer is dereferenced after its synchronization lock is released. An authenticated client can trigger a heap-use-after-free by racing AUDIN channel closure messages against DRDYN...

EUVD-2026-78804

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-fre...

Linux Distros Unpatched Vulnerability : CVE-2026-91947

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

PT-2026-92066

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-fre...

CVE-2026-91947: Concurrent Execution using Shared Resource with Improper Synchronization

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-fre...

Astra Linux – Vulnerability in xrdp

xrdp is an open-source project that provides a graphical login to remote machines using the Microsoft Remote Desktop Protocol RDP. xrdp versions prior to 0.9.21 contain a bug in the xrdpmmtransprocessdrdynvcchannelopen function. There are no known solutions to this issue. Users are advised to...

CVE-2026-56297 FreeRDP - Use-After-Free via Race Condition in DRDYNVC Channel Callback

FreeRDP before 3.22.0 contains a use-after-free vulnerability in dvcmanchannelclose and dvcmancallonreceive due to improper synchronization of channelcallback access. A malicious RDP server can trigger a race condition by sending DYNVCDATA and DYNVCCLOSE messages concurrently, causing...

CVE-2026-56297

FreeRDP before 3.22.0 contains a use-after-free vulnerability in dvcmanchannelclose and dvcmancallonreceive due to improper synchronization of channelcallback access. A malicious RDP server can trigger a race condition by sending DYNVCDATA and DYNVCCLOSE messages concurrently, causing...

MiracleLinux 7 : freerdp-2.0.0-1.rc4.el7, vinagre-3.22.0-12.el7 (AXSA:2019-4179:01)

The remote MiracleLinux 7 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2019-4179:01 advisory. freerdp: out of bounds read in drdynvcprocesscapabilityrequest CVE-2018-1000852 Tenable has extracted the preceding description block directly from the...

SUSE CVE-2022-23478

xrdp is an open source project which provides a graphical login to remote machines using Microsoft Remote Desktop Protocol RDP. xrdp v0.9.21 contain a Out of Bound Write in xrdpmmtransprocessdrdynvcchannelopen function. There are no known workarounds for this issue. Users are advised to upgrade...

The vulnerability of the xrdp_mm_trans_process_drdynvc_channel_close() function on the XRDP server allows a malicious actor to gain unauthorized access to protected information or cause service failures.

The vulnerability of the xrdpmmtransprocessdrdynvcchannelclose function on the XRDP server is related to reading data beyond the buffer limit in memory. Exploiting this vulnerability can allow a malicious actor to gain unauthorized access to protected information or cause service failures...