CVE-2026-91958

FreeRDP versions 3.11.0 through 3.30.0 fail to validate MonitorIds array values when parsing RDP connection files, causing unbounded array indexing in xf_detect_monitors . An attacker can craft a malicious RDP file with an out-of-range selectedmonitors value to trigger out-of-bounds heap read and...

CVE-2026-91958 FreeRDP 3.11.0 through 3.30.0 Heap Buffer Overflow via Monitor Index

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...

CVE-2026-91959 FreeRDP before 3.31.0 Buffer Over-read via RTS Gateway

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-2026-91957 FreeRDP before 3.31.0 Use-After-Free via smartcard worker

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...

EUVD-2026-78633

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-2026-91957

FreeRDP before 3.31.0 contains a use-after-free vulnerability in the smartcard RDPDR device handler . When a remote attacker triggers worker thread creation failure after device registration during channel setup, the device pointer is deallocated while the device manager (devman) still retains a ...

CVE-2026-91956 FreeRDP before 3.31.0 Out-of-Bounds Read via URBDRC

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-2026-91956

FreeRDP before 3.31.0 contains an out-of-bounds read vulnerability in the URBDRC (USB device redirection) channel's func_get_ep_desc function. The root cause is an index mismatch : the function indexes interface arrays by position rather than by the protocol field InterfaceNumber. A malicious RDP...

CVE-2026-91955 FreeRDP before 3.31.0 Denial of Service via Desktop Dimensions

FreeRDP before 3.31.0 fails to validate client-supplied DesktopWidth and DesktopHeight values during GCC negotiation, allowing remote attackers to crash the server. Attackers can send crafted RDP packets with zero or oversized dimensions to trigger division-by-zero or assertion failures in...

EUVD-2026-78632

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...

EUVD-2026-78631

FreeRDP before 3.31.0 fails to validate client-supplied DesktopWidth and DesktopHeight values during GCC negotiation, allowing remote attackers to crash the server. Attackers can send crafted RDP packets with zero or oversized dimensions to trigger division-by-zero or assertion failures in...

CVE-2026-91955

FreeRDP before 3.31.0 contains a denial-of-service flaw in its RDP server. During GCC (Graphics Command Channel) negotiation , the server fails to validate client-supplied DesktopWidth and DesktopHeight values. A remote attacker can send crafted RDP packets with zero or oversized dimensions , tri...

CVE-2026-91955

FreeRDP before 3.31.0 fails to validate client-supplied DesktopWidth and DesktopHeight values during GCC negotiation, allowing remote attackers to crash the server. Attackers can send crafted RDP packets with zero or oversized dimensions to trigger division-by-zero or assertion failures in...

CVE-2026-91954 FreeRDP before 3.31.0 NULL Pointer Dereference via NSCodec

FreeRDP before 3.31.0 contains a null pointer dereference vulnerability in gdisurfacebits when processing Surface Bits commands with NSCodec codec ID. A malicious RDP server can crash a FreeRDP client by sending a crafted Surface Bits command claiming to use NSCodec, even when the codec is disabl...

CVE-2026-91954

FreeRDP versions before 3.31.0 contain a null pointer dereference in the gdi_surface_bits function. A malicious RDP server can crash a FreeRDP client by sending a crafted Surface Bits command that claims to use the NSCodec codec ID, even when the codec is disabled on the client side. The impact i...

CVE-2026-91954 FreeRDP before 3.31.0 NULL Pointer Dereference via NSCodec

FreeRDP before 3.31.0 contains a null pointer dereference vulnerability in gdisurfacebits when processing Surface Bits commands with NSCodec codec ID. A malicious RDP server can crash a FreeRDP client by sending a crafted Surface Bits command claiming to use NSCodec, even when the codec is disabl...

EUVD-2026-78630

FreeRDP before 3.31.0 contains a null pointer dereference vulnerability in gdisurfacebits when processing Surface Bits commands with NSCodec codec ID. A malicious RDP server can crash a FreeRDP client by sending a crafted Surface Bits command claiming to use NSCodec, even when the codec is disabl...

EUVD-2026-78809

FreeRDP versions before 3.31.0 contain an infinite-loop denial of service in the pooldecoderect function when decoding AVC444 metablocks with more region rectangles than preallocated worker array size. A malicious RDP server can send crafted AVC444 graphics updates causing the threaded decode pat...

CVE-2026-91952

FreeRDP versions before 3.31.0 are vulnerable to an infinite-loop denial of service in the pool_decode_rect function. When a malicious RDP server sends crafted AVC444 graphics updates with more region rectangles than the preallocated worker array size, the threaded decode path loops indefinitely,...

CVE-2026-91953 FreeRDP before 3.31.0 Heap Buffer Overflow via LB_LOAD_BALANCE_INFO

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...