CVE-2026-91945

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...

CVE-2026-91964 FreeRDP 2.0.0 through 3.30.0 Heap Buffer Overflow via RoutingToken

FreeRDP versions before 3.31.0 contain a heap-based buffer overflow in negosendnegotiationrequest when processing Server Redirection PDU messages with attacker-controlled LoadBalanceInfo fields. A malicious RDP server can trigger the overflow by sending an arbitrary-length field that gets written...

CVE-2026-91964 FreeRDP 2.0.0 through 3.30.0 Heap Buffer Overflow via RoutingToken

FreeRDP versions before 3.31.0 contain a heap-based buffer overflow in negosendnegotiationrequest when processing Server Redirection PDU messages with attacker-controlled LoadBalanceInfo fields. A malicious RDP server can trigger the overflow by sending an arbitrary-length field that gets written...

CVE-2026-91964

FreeRDP versions before 3.31.0 are affected by a heap-based buffer overflow in the nego_send_negotiation_request function. When a malicious RDP server sends a crafted Server Redirection PDU with an attacker-controlled LoadBalanceInfo field, the arbitrary-length data is written into a fixed 512-by...

EUVD-2026-78640

FreeRDP versions before 3.31.0 contain a heap-based buffer overflow in negosendnegotiationrequest when processing Server Redirection PDU messages with attacker-controlled LoadBalanceInfo fields. A malicious RDP server can trigger the overflow by sending an arbitrary-length field that gets written...

CVE-2026-91963

FreeRDP versions 2.0.0 through 3.30.0 contain an uninitialized heap memory disclosure vulnerability in the urbdrc USB redirection channel . A malicious RDP server can induce failing USB transfers, allowing it to read uninitialized heap memory from the client. This information disclosure can defea...

EUVD-2026-78639

FreeRDP versions before 3.31.0 contain an uninitialized heap memory disclosure vulnerability in the urbdrc USB redirection channel. A malicious RDP server can induce failing USB transfers to read uninitialized heap memory from the client, defeating ASLR and enabling remote code execution when...

CVE-2026-91963 FreeRDP 2.0.0 through 3.30.0 Uninitialized Heap Memory Disclosure via urbdrc

FreeRDP versions before 3.31.0 contain an uninitialized heap memory disclosure vulnerability in the urbdrc USB redirection channel. A malicious RDP server can induce failing USB transfers to read uninitialized heap memory from the client, defeating ASLR and enabling remote code execution when...

CVE-2026-91962 FreeRDP before 3.31.0 Integer Overflow via audin Apple backends

FreeRDP before 3.31.0 contains an integer overflow in the audin Apple backends when processing FramesPerPacket values from MSGSNDINOPEN messages. Attackers can supply crafted FramesPerPacket values that cause AudioQueueAllocateBuffer size computation to wrap, resulting in undersized buffer...

CVE-2026-91962

FreeRDP before 3.31.0 is affected by an integer overflow in the audin Apple backends when processing FramesPerPacket values from MSG_SNDIN_OPEN messages. A malicious RDP server can supply crafted values that cause the AudioQueueAllocateBuffer size computation to wrap, resulting in an undersized b...

CVE-2026-91961 FreeRDP before 3.31.0 Denial of Service via URBDRC

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-2026-91961

FreeRDP before 3.31.0 is affected by a denial-of-service vulnerability in the URBDRC (USB Redirection for Remote Desktop Connection) control-transfer request path. The flaw stems from a missing validation of OutputBufferSize before the value is forwarded to the libusb backend . A malicious RDP se...

EUVD-2026-78638

FreeRDP before 3.31.0 contains an integer overflow in the audin Apple backends when processing FramesPerPacket values from MSGSNDINOPEN messages. Attackers can supply crafted FramesPerPacket values that cause AudioQueueAllocateBuffer size computation to wrap, resulting in undersized buffer...

EUVD-2026-78637

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...

EUVD-2026-78636

FreeRDP versions before 3.31.0 contain an integer overflow in WinPR's StreamEnsureRemainingCapacity function that allows remote attackers to cause denial of service. A malicious RD Gateway peer can send a WebSocket Ping frame with a crafted 64-bit extended payload length to trigger integer...

CVE-2026-91960 FreeRDP before 3.31.0 Integer Overflow Double Free

FreeRDP versions before 3.31.0 contain an integer overflow in WinPR's StreamEnsureRemainingCapacity function that allows remote attackers to cause denial of service. A malicious RD Gateway peer can send a WebSocket Ping frame with a crafted 64-bit extended payload length to trigger integer...

CVE-2026-91960

FreeRDP versions before 3.31.0 contain an integer overflow in WinPR's Stream_EnsureRemainingCapacity function. A malicious RD Gateway peer can send a WebSocket Ping frame with a crafted 64-bit extended payload length, triggering integer wraparound that leads to a double free and crashes the FreeR...

CVE-2026-91959

FreeRDP before 3.31.0 contains a buffer over-read in the rts_read_result function within the RPC gateway transport parser . The root cause is that the function length-checks 2 bytes but then reads 4 , allowing a remote attacker to send a malicious BIND_ACK PDU with a truncated result entry to tri...

EUVD-2026-78635

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...

EUVD-2026-78634

FreeRDP versions before 3.31.0 fail to validate MonitorIds array values when parsing RDP connection files, allowing unbounded array indexing in xfdetectmonitors. Attackers can craft a malicious RDP file with an out-of-range selectedmonitors value to trigger out-of-bounds heap read and write...