CVE-2026-91959: Out-of-bounds Read

FreeRDP before 3.31.0 contains a buffer over-read vulnerability in the rtsreadresult function within the RPC gateway transport parser. Attackers can send a malicious BINDACK PDU with a truncated result entry to trigger an out-of-bounds read causing process abort...

CVE-2026-91945: Out-of-bounds Read

FreeRDP versions before 3.31.0 contain an out-of-bounds read vulnerability in smartcard response decoders that fail to validate ATR length fields against fixed inline arrays. Authenticated RDP clients can send oversized ATR lengths in PAKIDCOREDEVICEIOCOMPLETION responses to trigger reads past...

PT-2026-92074

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.31.0 Description Remote attackers can cause a server crash by sending crafted RDP packets with zero or oversized values for the DesktopWidth and DesktopHeight variables during GCC negotiation. This lack of validatio...

Linux Distros Unpatched Vulnerability : CVE-2026-91957

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - FreeRDP before 3.31.0 contains a use-after-free vulnerability in the smartcard RDPDR device handler when worker thread creation fails after device registration...

Linux Distros Unpatched Vulnerability : CVE-2026-91956

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - FreeRDP before 3.31.0 contains an out-of-bounds read vulnerability in the URBDRC channel's funcgetepdesc function that indexes interface arrays by position...

Linux Distros Unpatched Vulnerability : CVE-2026-91960

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - FreeRDP versions before 3.31.0 contain an integer overflow in WinPR's StreamEnsureRemainingCapacity function that allows remote attackers to cause denial of...

MiracleLinux 9 : freerdp-2.11.7-7.el9_8.7 (AXSA:2026-1843:29)

The remote MiracleLinux 9 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2026-1843:29 advisory. FreeRDP: FreeRDP: Remote code execution or client crash via malicious TS Gateway CVE-2026-55193 Tenable has extracted the preceding description block directl...

Linux Distros Unpatched Vulnerability : CVE-2026-91951

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - FreeRDP versions before 3.31.0 contain an out-of-bounds write vulnerability in the urbdrc client channel's urbsendcurrentframenumberresult function. A malicious...

Linux Distros Unpatched Vulnerability : CVE-2026-91945

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - FreeRDP versions before 3.31.0 contain an out-of-bounds read vulnerability in smartcard response decoders that fail to validate ATR length fields against fixed...

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...

CVE-2026-91953: Buffer Copy without Checking Size of Input

FreeRDP versions before 3.31.0 contain a heap buffer overflow vulnerability in negosendnegotiationrequest that fails to validate the LBLOADBALANCEINFO field length before writing to a fixed 512-byte buffer. A malicious RDP server or man-in-the-middle can send a Server Redirection PDU with an...

CVE-2026-91961: Reachable Assertion

FreeRDP before 3.31.0 contains a denial-of-service vulnerability in the URBDRC control-transfer request path that fails to validate OutputBufferSize before forwarding to the libusb backend. A malicious RDP server can send a control-transfer request with OutputBufferSize set to 65536, triggering a...

CVE-2026-91956: Out-of-bounds Read

FreeRDP before 3.31.0 contains an out-of-bounds read vulnerability in the URBDRC channel's funcgetepdesc function that indexes interface arrays by position instead of protocol field InterfaceNumber. A malicious RDP server can send a crafted SELECTCONFIGURATION message with permuted InterfaceNumbe...

OESA-2026-3856 freerdp security update

FreeRDP is a client implementation of the Remote Desktop Protocol RDP that follows Microsoft's open specifications. This package provides the client applications xfreerdp. Security Fixes: FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.20.1, a...

OESA-2026-3855 freerdp security update

FreeRDP is a client implementation of the Remote Desktop Protocol RDP that follows Microsoft's open specifications. This package provides the client applications xfreerdp. Security Fixes: FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.20.1, a...

OESA-2026-3854 freerdp security update

FreeRDP is a client implementation of the Remote Desktop Protocol RDP that follows Microsoft's open specifications. This package provides the client applications xfreerdp. Security Fixes: FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.20.1, a...

OESA-2026-3853 freerdp security update

FreeRDP is a client implementation of the Remote Desktop Protocol RDP that follows Microsoft's open specifications. This package provides the client applications xfreerdp. Security Fixes: FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.20.1, a...

Astra Linux – Vulnerability in freerdp2

FreeRDP is a free implementation of the Remote Desktop Protocol RDP, released under the Apache license. All FreeRDP clients prior to version 2.4.1 that used gateway connections /gt:rpc failed to validate input data. A malicious gateway could allow client memory to be written out of bounds. This...

Astra Linux – Vulnerability in freerdp3, freerdp2

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.22.0, urbselectinterface could free the device’s MS config upon an error, but subsequent code still dereferenced it, resulting in a use after free in libusbudevselectinterface. This vulnerability has been fixed in...

Astra Linux – Vulnerability in freerdp3

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.24.0, there was a buffer overflow vulnerability in freerdpbitmapdecompressplanar when SrcSize was 0. The function dereferences srcp which points to pSrcData without first verifying that SrcSize is greater than or...