PT-2026-92070

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.31.0 Description An out-of-bounds write occurs in the urbdrc client channel's urb send current frame number result function. A malicious RDP server can send a crafted 28-byte USB redirection message to trigger a...

PT-2026-92068

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.31.0 Description Unauthenticated attackers can bypass the protocol policy to establish RDSTLS connections even when the server policy has explicitly disabled them. This is achieved by sending incompatible protocol...

CVE-2026-91957: Use After Free

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. Attackers can trigger thread creation failure during channel setup to cause device pointer deallocation while devman retains a reference...

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...

PT-2026-92067

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.31.0 Description An out-of-bounds write issue exists in server-side static virtual channel handling when CHANNEL OPTION SHOW PROTOCOL is enabled. Authenticated clients can queue oversized channel messages, leading t...

PT-2026-92072

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.31.0 Description A heap buffer overflow occurs in the nego send negotiation request function due to a failure to validate the length of the LB LOAD BALANCE INFO field before writing it to a fixed 512-byte buffer. A...

PT-2026-92075

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.31.0 Description An out-of-bounds read occurs in the func get ep desc function within the URBDRC channel. The issue arises because interface arrays are indexed by position rather than by the protocol field...

PT-2026-92079

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.31.0 Description An integer overflow exists in the Stream EnsureRemainingCapacity function within WinPR. A remote attacker acting as a malicious RD Gateway peer can send a WebSocket Ping frame containing a crafted...

PT-2026-92083

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.31.0 Description A heap-based buffer overflow occurs in the nego send negotiation request function when processing Server Redirection PDU Protocol Data Unit messages. A malicious RDP server can trigger this issue by...

CVE-2026-91964: Heap-based Buffer Overflow

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-2026-91953: 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-2026-91956: 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...

CVE-2026-91963: Use of Uninitialized Variable

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-2026-91964: Heap-based Buffer Overflow

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...

PT-2026-92069

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.31.0 Description An out-of-bounds read occurs in the rdpdr dump packet function due to a 32-bit unsigned integer wraparound during buffer bounds validation. A malicious RDP server can send a crafted RDPDR packet wit...

PT-2026-92078

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.31.0 Description A buffer over-read occurs in the rts read result function within the RPC gateway transport parser. An attacker can trigger an out-of-bounds read, leading to a process abort, by sending a malicious...

PT-2026-92082

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.31.0 Description An uninitialized heap memory disclosure exists in the urbdrc USB redirection channel. A malicious RDP server can trigger failing USB transfers to read uninitialized heap memory from the client. This...

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-2026-91956: 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...

CVE-2026-91963: Use of Uninitialized Variable

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...