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Sicherheitslücken in freerdp3 · Seite 4

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für freerdp3: 69. Davon im KEV-Katalog: 0.

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Sicherheitslücken: 202

  1. CVE-2026-109248

    Mittel · CVSS 6.9EPSS 0,31%Keine Korrektur veröffentlicht

    FreeRDP 3.0.0 before 3.32.0 Heap Out-of-Bounds Read via WinPR Clipboard cFileName

    FreeRDP 3.0.0 before 3.32.0 contains a heap out-of-bounds read in the WinPR clipboard function convert_filedescriptors_to_file_list(), which scans a server-controlled FILEDESCRIPTORW cFileName with unbounded _wcschr() and count_special_chars() calls without a NUL-termination guarantee. A malicious RDP server can send an odd-length FILEDESCRIPTORW blob in a CB_FORMAT_DATA_RESPONSE, crashing X11, Wayland, and SDL clients when the user pastes server-copied files.

    Veröffentlicht Aktualisiert
  2. CVE-2026-109247

    Niedrig · CVSS 2.1EPSS 0,29%Keine Korrektur veröffentlicht

    FreeRDP before 3.32.0 Path Traversal via Clipboard cFileName

    FreeRDP before 3.32.0 contains a path traversal vulnerability in convert_filedescriptors_to_file_list() in winpr/libwinpr/clipboard/synthetic_file.c, which concatenates server-supplied cFileName values from FileGroupDescriptorW clipboard data into the published local file:// URI without rejecting '/' or '..' sequences. A malicious RDP server can supply '../' sequences so the user's next clipboard paste copies an arbitrary local file readable by the client user instead of the expected remote file.

    Veröffentlicht Aktualisiert
  3. CVE-2026-109246

    Hoch · CVSS 7.1EPSS 0,38%Keine Korrektur veröffentlicht

    FreeRDP before 3.32.0 Shadow Server Divide-by-Zero via Frame Acknowledge PDU

    FreeRDP before 3.32.0 contains a divide-by-zero vulnerability in the freerdp-shadow-cli shadow server: the frame id in a client's Frame Acknowledge PDU is stored without a range check, so the in-flight frame count in shadow_encoder_inflight_frames() can underflow. An authenticated client can acknowledge a frame id one greater than the last frame sent, causing shadow_encoder_create_frame_id() to divide by zero (SIGFPE) and terminate the process, disconnecting all viewers.

    Veröffentlicht Aktualisiert
  4. CVE-2026-109245

    Hoch · CVSS 7.4EPSS 0,24%Keine Korrektur veröffentlicht

    FreeRDP 3.0.0 before 3.32.0 Improper Certificate Validation in freerdp_http_request

    FreeRDP 3.0.0 before 3.32.0 contains an improper certificate validation vulnerability in freerdp_http_request() in libfreerdp/utils/http.c that completes TLS handshakes without verifying the server certificate chain. On-path attackers can impersonate login.microsoftonline.com in the Azure AD authentication flow to capture OAuth authorization codes and substitute the OpenID discovery document.

    Veröffentlicht Aktualisiert
  5. CVE-2026-109244

    Mittel · CVSS 6.8EPSS 0,1%Keine Korrektur veröffentlicht

    FreeRDP 2.0.0 before 3.32.0 Insecure Private Key Permissions in winpr-makecert

    FreeRDP from 2.0.0 before 3.32.0 contains an insecure permission vulnerability in winpr-makecert that creates unencrypted private keys without owner-only file modes. Local users on multi-user Unix hosts can read world-readable key files or open PFX files protected by the hard-coded default password to steal private keys.

    Veröffentlicht Aktualisiert
  6. CVE-2026-109243

    Mittel · CVSS 4.1EPSS 0,14%Keine Korrektur veröffentlicht

    FreeRDP 3.0.0 before 3.32.0 Insecure Permissions on Soft-Smartcard Private Key File

    FreeRDP from 3.0.0 before 3.32.0 contains an incorrect permission assignment vulnerability that allows local users to read private keys written by crypto_write_pem without owner-only permissions. Attackers on multi-user Unix hosts can enumerate the shared temporary directory during soft-smartcard logon to read the world-readable PKINIT private-key copy.

    Veröffentlicht Aktualisiert
  7. CVE-2026-109242

    Hoch · CVSS 7.1EPSS 0,29%Öffentlicher ExploitKeine Korrektur veröffentlicht

    FreeRDP before 3.0.0 and 3.6.0 before 3.32.0 Uninitialized Heap Disclosure via Progressive Codec Tile Upgrade

    FreeRDP before 3.0.0 and 3.6.0 before 3.32.0 renders uninitialized heap memory from un-decoded progressive tiles because the tile->current buffer is allocated without zeroing. A malicious RDP server can send a crafted WBT_TILE_FIRST then WBT_TILE_UPGRADE sequence to paint heap bytes onscreen or abort the client process.

    Veröffentlicht Aktualisiert
  8. CVE-2026-109241

    Niedrig · CVSS 2.3EPSS 0,22%Keine Korrektur veröffentlicht

    FreeRDP before 3.32.0 NULL Dereference in Video Redirection Channel

    FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the client video redirection channel that allows malicious servers to crash clients by sending out-of-order messages. Attackers can send a Geometry CLEAR message that nulls presentation->geometry, then send VideoData that dereferences it, causing client denial of service.

    Veröffentlicht Aktualisiert
  9. CVE-2026-109240

    Niedrig · CVSS 2.3EPSS 0,27%Keine Korrektur veröffentlicht

    FreeRDP 3.11.0 before 3.32.1 Reachable Assertion DoS via urb_isoch_transfer

    FreeRDP 3.11.0 before 3.32.1 contains a reachable assertion vulnerability in urb_isoch_transfer that allows malicious RDP servers to crash clients by sending unvalidated OutputBufferSize values. Attackers can send a TS_URB_ISOCH_TRANSFER IN-direction request with OutputBufferSize above INT32_MAX over URBDRC, triggering an assertion in libusb_udev_isoch_transfer that terminates the client.

    Veröffentlicht Aktualisiert
  10. CVE-2026-91964

    Hoch · CVSS 8.7EPSS 0,56%Keine Korrektur veröffentlicht

    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 nego_send_negotiation_request 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 to a fixed 512-byte buffer without validation, causing client crashes or potential code execution when chained with memory disclosure.

    Veröffentlicht Aktualisiert
  11. CVE-2026-91963

    Hoch · CVSS 7.1EPSS 0,66%Keine Korrektur veröffentlicht

    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 chained with memory corruption vulnerabilities.

    Veröffentlicht Aktualisiert
  12. CVE-2026-91962

    Mittel · CVSS 5.3EPSS 0,26%Keine Korrektur veröffentlicht

    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 MSG_SNDIN_OPEN messages. Attackers can supply crafted FramesPerPacket values that cause AudioQueueAllocateBuffer size computation to wrap, resulting in undersized buffer allocation and potential out-of-bounds access.

    Veröffentlicht Aktualisiert
  13. CVE-2026-91961

    Hoch · CVSS 7.1EPSS 0,37%Keine Korrektur veröffentlicht

    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 reachable assertion that terminates the client process.

    Veröffentlicht Aktualisiert
  14. CVE-2026-91959

    Hoch · CVSS 7.1EPSS 0,39%Keine Korrektur veröffentlicht

    FreeRDP before 3.31.0 Buffer Over-read via RTS Gateway

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

    Veröffentlicht Aktualisiert
  15. CVE-2026-91958

    Mittel · CVSS 6.9EPSS 0,2%Keine Korrektur veröffentlicht

    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 xf_detect_monitors. Attackers can craft a malicious RDP file with an out-of-range selectedmonitors value to trigger out-of-bounds heap read and write operations when opened in xfreerdp.

    Veröffentlicht Aktualisiert
  16. CVE-2026-91957

    Niedrig · CVSS 2.3EPSS 0,37%Keine Korrektur veröffentlicht

    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, leading to crash or code execution.

    Veröffentlicht Aktualisiert
  17. CVE-2026-91956

    Hoch · CVSS 7.1EPSS 0,39%Keine Korrektur veröffentlicht

    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 func_get_ep_desc function that indexes interface arrays by position instead of protocol field InterfaceNumber. A malicious RDP server can send a crafted SELECT_CONFIGURATION message with permuted InterfaceNumber values to read past allocated heap memory and crash the client.

    Veröffentlicht Aktualisiert
  18. CVE-2026-91955

    Hoch · CVSS 8.2EPSS 0,57%Keine Korrektur veröffentlicht

    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 multifragment update capability calculations, terminating the server process.

    Veröffentlicht Aktualisiert
  19. CVE-2026-91954

    Hoch · CVSS 7.1EPSS 0,39%Keine Korrektur veröffentlicht

    FreeRDP before 3.31.0 NULL Pointer Dereference via NSCodec

    FreeRDP before 3.31.0 contains a null pointer dereference vulnerability in gdi_surface_bits 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 disabled.

    Veröffentlicht Aktualisiert
  20. CVE-2026-91953

    Hoch · CVSS 7.1EPSS 0,47%Keine Korrektur veröffentlicht

    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 nego_send_negotiation_request() that fails to validate the LB_LOAD_BALANCE_INFO 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 oversized LB_LOAD_BALANCE_INFO value to overflow the buffer with attacker-controlled content, causing denial of service or heap corruption before authentication completes.

    Veröffentlicht Aktualisiert

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