CVE-2026-109951

The FreeRDP application (versions 3.17.1 before 3.32.0 ) is vulnerable to a heap buffer over-read in the DynvcTrackerHandleCreateBack function of the freerdp-proxy DRDYNVC channel handler. The root cause is an unbounded snprintf read triggered when a malicious backend RDP server sends a CREATE_RE...

CVE-2026-109952 FreeRDP 3.0.0 before 3.32.0 Security Protocol Downgrade via Negotiation Response

The FreeRDP client 3.0.0 before 3.32.0 does not check a server-selected PROTOCOLRDSTLS or PROTOCOLHYBRIDEX against its enabled protocol set in negoprocessnegotiationresponse, allowing a security protocol downgrade. A malicious server or man-in-the-middle can select RDSTLS to override /sec:nla...

CVE-2026-109952 FreeRDP 3.0.0 before 3.32.0 Security Protocol Downgrade via Negotiation Response

The FreeRDP client 3.0.0 before 3.32.0 does not check a server-selected PROTOCOLRDSTLS or PROTOCOLHYBRIDEX against its enabled protocol set in negoprocessnegotiationresponse, allowing a security protocol downgrade. A malicious server or man-in-the-middle can select RDSTLS to override /sec:nla...

CVE-2026-109951 FreeRDP 3.17.1 before 3.32.0 Heap Buffer Over-Read via Proxy DRDYNVC Channel Name

FreeRDP 3.17.1 before 3.32.0 contains a heap buffer over-read vulnerability in DynvcTrackerHandleCreateBack of the freerdp-proxy DRDYNVC channel handler that allows malicious backend RDP servers to read heap memory out of bounds. Attackers can send a CREATEREQUESTPDU whose channel name lacks a NU...

CVE-2026-109950

FreeRDP from 3.0.0 before 3.32.0 contains a heap out-of-bounds read vulnerability that allows a malicious RD Gateway to crash clients by sending mismatched message lengths. Attackers controlling the gateway can set MsgBytes far larger than the NDR string ActualCount in consent or service messages...

CVE-2026-109950

FreeRDP versions 3.0.0 through 3.31.x are vulnerable to a heap out-of-bounds read vulnerability when processing RD Gateway messages. The root cause is a mismatch in message lengths where an attacker controlling the gateway can set MsgBytes significantly larger than the NDR string ActualCount with...

CVE-2026-109950 FreeRDP 3.0.0 before 3.32.0 Heap Out-of-Bounds Read via RD Gateway Messages

FreeRDP from 3.0.0 before 3.32.0 contains a heap out-of-bounds read vulnerability that allows a malicious RD Gateway to crash clients by sending mismatched message lengths. Attackers controlling the gateway can set MsgBytes far larger than the NDR string ActualCount in consent or service messages...

CVE-2026-109948

FreeRDP from 3.0.0 before 3.32.0 contains an uninitialized memory disclosure vulnerability in smartcardTransmitCall that allows malicious RDP servers to read client memory. Servers can send SCardTransmit requests with an invalid card handle and nonzero receive length, causing...

CVE-2026-109949

FreeRDP 3.0.0 before 3.32.0 contains an improper restriction of excessive authentication attempts in its virtual smartcard GIDS implementation, which stores the PIN retry counter per-handle. A malicious RDP server can exhaust the counter with VERIFY APDUs, then request a new SCardConnect to reset...

CVE-2026-109949

FreeRDP versions 3.0.0 before 3.32.0 are vulnerable to a PIN brute-force attack within the virtual smartcard GIDS implementation . The root cause is an improper restriction of excessive authentication attempts , where the PIN retry counter is stored per-handle. A malicious RDP server can exhaust ...

CVE-2026-109948 FreeRDP 3.0.0 before 3.32.0 Memory Disclosure via SCardTransmit Smartcard Redirection

FreeRDP from 3.0.0 before 3.32.0 contains an uninitialized memory disclosure vulnerability in smartcardTransmitCall that allows malicious RDP servers to read client memory. Servers can send SCardTransmit requests with an invalid card handle and nonzero receive length, causing...

EUVD-2026-98652

FreeRDP from 3.0.0 before 3.32.0 contains an uninitialized memory disclosure vulnerability in smartcardTransmitCall that allows malicious RDP servers to read client memory. Servers can send SCardTransmit requests with an invalid card handle and nonzero receive length, causing...

CVE-2026-109949 FreeRDP 3.0.0 before 3.32.0 PIN Brute-Force via Virtual Smartcard

FreeRDP 3.0.0 before 3.32.0 contains an improper restriction of excessive authentication attempts in its virtual smartcard GIDS implementation, which stores the PIN retry counter per-handle. A malicious RDP server can exhaust the counter with VERIFY APDUs, then request a new SCardConnect to reset...

CVE-2026-109948

FreeRDP from 3.0.0 before 3.32.0 contains an uninitialized memory disclosure vulnerability in smartcardTransmitCall that allows malicious RDP servers to read client memory. Servers can send SCardTransmit requests with an invalid card handle and nonzero receive length, causing...

CVE-2026-109948 FreeRDP 3.0.0 before 3.32.0 Memory Disclosure via SCardTransmit Smartcard Redirection

FreeRDP from 3.0.0 before 3.32.0 contains an uninitialized memory disclosure vulnerability in smartcardTransmitCall that allows malicious RDP servers to read client memory. Servers can send SCardTransmit requests with an invalid card handle and nonzero receive length, causing...

CVE-2026-109948 FreeRDP 3.0.0 before 3.32.0 Memory Disclosure via SCardTransmit Smartcard Redirection

FreeRDP from 3.0.0 before 3.32.0 contains an uninitialized memory disclosure vulnerability in smartcardTransmitCall that allows malicious RDP servers to read client memory. Servers can send SCardTransmit requests with an invalid card handle and nonzero receive length, causing...

CVE-2026-109948

FreeRDP versions 3.0.0 before 3.32.0 are vulnerable to an uninitialized memory disclosure within the smartcard_Transmit_Call function. A malicious RDP server can exploit this by sending SCardTransmit requests with an invalid card handle and a nonzero receive length. This causes smartcard_pack_tra...

CVE-2026-109947 FreeRDP 3.20.1 before 3.32.0 Unbounded Allocation via drive_process_irp_read

FreeRDP from 3.20.1 before 3.32.0 contains an uncontrolled resource allocation vulnerability that allows malicious RDP servers to exhaust client memory via oversized drive redirection read requests. Attackers can send IRPMJREAD with Length 0xffffffff, causing roughly 4 GiB of zeroed allocation on...

CVE-2026-109947

FreeRDP versions 3.20.1 before 3.32.0 are vulnerable to an uncontrolled resource allocation vulnerability within the drive_process_irp_read function. A malicious RDP server can exploit this by sending an IRP_MJ_READ request with a length of 0xffffffff , which leads to the exhaustion of client mem...

CVE-2026-109947

FreeRDP from 3.20.1 before 3.32.0 contains an uncontrolled resource allocation vulnerability that allows malicious RDP servers to exhaust client memory via oversized drive redirection read requests. Attackers can send IRPMJREAD with Length 0xffffffff, causing roughly 4 GiB of zeroed allocation on...