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High ALAS2023-2026-3307 56 CVEs

Important: freerdp security update (Amazon Linux 2023)

Published Oct 26, 2026 · Updated Oct 26, 2026

Summary

Package updates are available for Amazon Linux 2023 that fix the following vulnerabilities: CVE-2026-111881: FreeRDP from 3.14.1 before 3.32.0 contains an integer underflow in the WinPR BMP writer, where a mismatched stride calculation passes SIZE_MAX - 3 to Stream_Zero for sub-byte images. A malicious RDP clipboard peer can return a crafted 1-bpp BMP processed by clipboard_synthesize_image_format_to_bmp for CF_DIB/CF_DIBV5, crashing the client or causing an out-of-bounds write. CVE-2026-111880: FreeRDP versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset. Unauthenticated attackers can send a crafted AUTHENTICATE_MESSAGE with a backward session-key offset and MIC offset to write 16 zero bytes beyond the allocation. CVE-2026-111382: FreeRDP before 3.32.0 contains a client-side heap out-of-bounds write vulnerability in general_LumaToYUV444 and general_ChromaV2ToYUV444 that allows malicious RDP servers to corrupt client memory. Attackers can send RDPGFX AVC444 or AVC444v2 frames with odd-height region rects ending at surface height to write past U/V planes, enabling heap corruption and potential code execution. CVE-2026-111381: FreeRDP before 3.32.0 contains a heap buffer overflow vulnerability in persistent_cache_read_entry_v2 that allows local attackers to corrupt heap memory via integer wraparound in bitmap size calculation. Attackers can craft a persistent cache v2 file with oversized width and height values that causes mismatched entry size accounting and fixed 16 KiB reads, leading to crashes or code execution when loaded. CVE-2026-111379: FreeRDP before 3.32.0 contains a heap buffer overflow vulnerability in persistent_cache_read_entry_v3 that allows local attackers to corrupt memory by supplying a crafted v3 persistent cache file. Attackers can set large width and height values that wrap the size calculation in persist_cache_get_data, causing fread to overflow an undersized buffer and potentially execute code. CVE-2026-111378: FreeRDP from 3.0.0 before 3.32.0 contains an uncontrolled resource consumption vulnerability in parse_nla_mode_pdu that allows unauthenticated attackers to exhaust server memory. Attackers can complete TLS and stream bytes not beginning with the DER SEQUENCE tag 0x30, causing unbounded receive buffer growth before NLA authentication. CVE-2026-111377: FreeRDP from 2.0.0 before 3.32.0 contains an unbounded reassembly vulnerability in WTSProcessChannelData that fails to enforce cumulative fragment limits. Authenticated clients can start a static virtual channel message, withhold the LAST flag, and send endless fragments to exhaust server memory. CVE-2026-111374: FreeRDP from 3.30.0 before 3.32.0 contains a resource exhaustion vulnerability in the rdpecam client that lets malicious RDP servers request unadvertised camera media types. Attackers can send a StartStreamsRequest with oversized dimensions to force large pending-sample allocations and reconfigure the local camera through the HAL. CVE-2026-111373: FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending zero-length pings. When the payload length is zero, websocket_reply_pong passes a nullptr stream to websocket_reply_close, triggering an assertion failure that terminates the client process and causes denial of service. CVE-2026-110839: FreeRDP 3.3.0 before 3.32.0, when built with WINPR_UTILS_IMAGE_JPEG=ON, has a heap-based out-of-bounds write in winpr_convert_from_jpeg because grayscale JPEG buffers are sized from one input component rather than three BGR output components. A malicious RDP server can offer a grayscale JPEG via clipboard redirection, corrupting client memory and crashing it when the item is pasted as CF_DIB bitmap data. CVE-2026-110838: FreeRDP shadow server from 3.0.0 before 3.32.0 dispatches input PDUs during the Confirm Active state before authentication, allowing unauthenticated attackers to inject keyboard input. Attackers can negotiate TLS-only RDP and send an input PDU without Confirm Active to inject synthetic keystrokes into the host user's X11 session via XTEST. CVE-2026-110837: FreeRDP 2.0.0 before 3.32.0, when built with WITH_LAME=ON and WITH_DSP_FFMPEG=OFF, has a heap-based buffer overflow in freerdp_dsp_decode_mp3 because the right-channel PCM pointer is offset by a byte count treated as short elements. A malicious RDP server can send MP3 audio over rdpsnd so decoded samples cross the heap allocation, crashing the client. CVE-2026-110836: FreeRDP from 3.0.0 before 3.32.0 contains an infinite loop vulnerability in http_response_recv() that allows malicious gateways to exhaust client CPU via crafted Content-Type headers. Attackers controlling a gateway can return a nonzero Content-Length with a semicolon-containing unrecognized Content-Type, pinning a client thread at full CPU indefinitely. CVE-2026-110835: FreeRDP 3.0.0 before 3.32.0 allows HTTP header injection in its proxy because a lone LF in the target portion of a routing token (Cookie: msts=) is not rejected and is written by http_proxy_connect into the CONNECT request line and Host header. A remote unauthenticated RDP client connecting to a proxy using FixedTarget=false and an upstream HTTP proxy can alter HTTP request/header framing at that upstream proxy. CVE-2026-110834: FreeRDP from 2.0.0 before 3.32.0 contains a null pointer dereference vulnerability that allows malicious RDP servers to crash clients by sending out-of-lifecycle serial IRPs. Attackers can send IRP_MJ_READ or IRP_MJ_WRITE before create or after close, causing CommReadFile or CommWriteFile to dereference a null handle and terminate clients using Linux serial redirection. CVE-2026-110833: FreeRDP from 3.0.0-beta1 before 3.32.0 fails to enforce cumulative or absolute size limits when reassembling RDPDR channel fragments in the proxy. Attackers can send a FIRST fr

Fixed packages 11

ReleasePackageFixed in
Amazon Linux · 2023 freerdp 2:3.32.1-1.amzn2023.0.1
Amazon Linux · 2023 freerdp-debuginfo 2:3.32.1-1.amzn2023.0.1
Amazon Linux · 2023 freerdp-debugsource 2:3.32.1-1.amzn2023.0.1
Amazon Linux · 2023 freerdp-devel 2:3.32.1-1.amzn2023.0.1
Amazon Linux · 2023 freerdp-libs 2:3.32.1-1.amzn2023.0.1
Amazon Linux · 2023 freerdp-libs-debuginfo 2:3.32.1-1.amzn2023.0.1
Amazon Linux · 2023 freerdp-server 2:3.32.1-1.amzn2023.0.1
Amazon Linux · 2023 freerdp-server-debuginfo 2:3.32.1-1.amzn2023.0.1
Amazon Linux · 2023 libwinpr 2:3.32.1-1.amzn2023.0.1
Amazon Linux · 2023 libwinpr-debuginfo 2:3.32.1-1.amzn2023.0.1
Amazon Linux · 2023 libwinpr-devel 2:3.32.1-1.amzn2023.0.1

Vulnerabilities 56

  • High 8.8

    FreeRDP 3.0.0-beta1 before 3.32.0 Use-After-Free via Smartcard Connect

    FreeRDP from 3.0.0-beta1 before 3.32.0 contains a use-after-free vulnerability in smartcard handling that allows attackers to access a freed smartcard handle object after an invalid connect operation. Attackers can trigger an invalid smartcard connect operati…

  • High 8.8

    FreeRDP before 3.32.0 Heap Out-of-Bounds Write in AVC444 YUV444 Combine

    FreeRDP before 3.32.0 contains a client-side heap out-of-bounds write vulnerability in general_LumaToYUV444 and general_ChromaV2ToYUV444 that allows malicious RDP servers to corrupt client memory. Attackers can send RDPGFX AVC444 or AVC444v2 frames with odd-h…

  • High 7.6

    FreeRDP 3.14.1 before 3.32.0 Integer Underflow in BMP Writer via Clipboard

    FreeRDP from 3.14.1 before 3.32.0 contains an integer underflow in the WinPR BMP writer, where a mismatched stride calculation passes SIZE_MAX - 3 to Stream_Zero for sub-byte images. A malicious RDP clipboard peer can return a crafted 1-bpp BMP processed by c…

  • High 7.5

    FreeRDP shadow before 3.32.0 Pre-Authentication Input Injection via Confirm Active bypass

    FreeRDP shadow server from 3.0.0 before 3.32.0 dispatches input PDUs during the Confirm Active state before authentication, allowing unauthenticated attackers to inject keyboard input. Attackers can negotiate TLS-only RDP and send an input PDU without Confirm…

  • High 7.5

    FreeRDP 3.0.0 before 3.32.0 Unauthenticated Memory Exhaustion via NLA Frame Parser

    FreeRDP from 3.0.0 before 3.32.0 contains an uncontrolled resource consumption vulnerability in parse_nla_mode_pdu that allows unauthenticated attackers to exhaust server memory. Attackers can complete TLS and stream bytes not beginning with the DER SEQUENCE …

  • High 7.4

    FreeRDP 2.0.0 before 3.32.0 Heap Out-of-Bounds Write via NTLM MIC Offset

    FreeRDP versions from 2.0.0 before 3.32.0 contain a heap out-of-bounds write in the server hash-callback NTLM path that fails to validate the MIC offset. Unauthenticated attackers can send a crafted AUTHENTICATE_MESSAGE with a backward session-key offset and …

  • High 7.3

    FreeRDP before 3.32.0 Heap Buffer Overflow via persistent_cache_read_entry_v3

    FreeRDP before 3.32.0 contains a heap buffer overflow vulnerability in persistent_cache_read_entry_v3 that allows local attackers to corrupt memory by supplying a crafted v3 persistent cache file. Attackers can set large width and height values that wrap the …

  • High 7.3

    FreeRDP before 3.32.0 Heap Buffer Overflow via Persistent Cache v2 Parser

    FreeRDP before 3.32.0 contains a heap buffer overflow vulnerability in persistent_cache_read_entry_v2 that allows local attackers to corrupt heap memory via integer wraparound in bitmap size calculation. Attackers can craft a persistent cache v2 file with ove…

  • High 7.1

    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 sequ…

  • High 7.1

    FreeRDP 2.0.0 before 3.32.0 Heap Buffer Overflow via MP3 Audio Decoding

    FreeRDP 2.0.0 before 3.32.0, when built with WITH_LAME=ON and WITH_DSP_FFMPEG=OFF, has a heap-based buffer overflow in freerdp_dsp_decode_mp3 because the right-channel PCM pointer is offset by a byte count treated as short elements. A malicious RDP server can…

  • High 7.1

    FreeRDP 3.3.0 before 3.32.0 Heap Out-of-Bounds Write via Grayscale JPEG Clipboard Data

    FreeRDP 3.3.0 before 3.32.0, when built with WINPR_UTILS_IMAGE_JPEG=ON, has a heap-based out-of-bounds write in winpr_convert_from_jpeg because grayscale JPEG buffers are sized from one input component rather than three BGR output components. A malicious RDP …

  • Medium 6.8

    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.mi…

  • Medium 6.6

    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 prot…

  • Medium 6.6

    FreeRDP 3.0.0 before 3.32.0 Heap Buffer Overflow via PKCS#11 collect_keys()

    FreeRDP 3.0.0 before 3.32.0 contains a heap buffer overflow vulnerability in collect_keys() that allows local attackers to write past the fixed 64-entry keys array during PKCS#11 key enumeration. Attackers controlling smartcard tokens can present more than 64…

  • Medium 6.5

    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 under…

  • Medium 6.5

    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…

  • Medium 6.5

    FreeRDP 2.0.0-beta1 before 3.28.0 Out-of-Bounds Read via LocateCardsByATRA Handler

    FreeRDP from 2.0.0-beta1 before 3.28.0 contains an out-of-bounds read vulnerability in smartcard_LocateCardsByATRA_Call because the ATR pattern cbAtr byte count is not capped. Malicious RDP servers can send crafted ATR mask arrays to use query timing as an or…

  • Medium 6.5

    FreeRDP 3.0.0-beta1 before 3.32.0 Reachable Assertion via Emulated SCardStatusA

    FreeRDP 3.0.0-beta1 before 3.32.0, when built with verbose WinPR assertions and using smartcard emulation, has a reachable assertion: the emulated SCardStatusA passes a NULL reader-name destination to scard_copy_strings. A malicious RDP server can send an SCa…

  • Medium 6.5

    FreeRDP 3.27.1 before 3.32.0 NULL Pointer Dereference via Cache Bitmap V3 Order

    FreeRDP 3.27.1 before 3.32.0 contains a NULL pointer dereference in update_read_cache_bitmap_v3_order() in libfreerdp/core/orders.c, which accesses the client bitmap cache when the CBR3_DO_NOT_CACHE flag is set, even though the cache is not yet initialized be…

  • Medium 6.5

    FreeRDP 2.3.0 before 3.32.0 Infinite Loop via RD Gateway Chunked Response

    FreeRDP from 2.3.0 before 3.32.0 contains an infinite loop vulnerability in http_chuncked_read that allows malicious RD Gateways to hang clients by sending incomplete chunked responses. Attackers can send a partial chunk-size line or footer followed by a clea…

  • Medium 6.5

    FreeRDP 2.3.0 before 3.32.0 NULL Pointer Dereference via RD Gateway Close Channel Packet

    FreeRDP 2.3.0 before 3.32.0 dereferences a NULL stream in rdg_process_close_packet in libfreerdp/core/gateway/rdg.c because rdg_process_control_packet accepts a header-only PKT_TYPE_CLOSE_CHANNEL packet and passes the null payload without a check. A malicious…

  • Medium 6.5

    FreeRDP 3.29.0 before 3.32.0 Double Free via Async-Update Polygon Order

    FreeRDP 3.29.0 before 3.32.0 contains a double free in the client's async-update message proxy, which shallow-copies the parser-owned PolygonSC or PolygonCB points array when numPoints is zero, so both the queue consumer and parser cleanup free it. A maliciou…

  • Medium 6.5

    FreeRDP 3.0.0 before 3.32.0 Reachable Assertion via Stale Smartcard Handle

    FreeRDP 3.0.0 before 3.32.0 does not remove card handles when Emulate_SCardReleaseContext releases a smartcard-emulation context, so Emulate_SCardTransmit later looks up the deleted parent context and reaches a terminating WINPR_ASSERT. A malicious RDP server…

  • Medium 6.5

    FreeRDP 3.11.0 before 3.32.0 Reachable Assertion via AVC444 Odd Region Width

    FreeRDP 3.11.0 before 3.32.0 does not validate that AVC444 and AVC444v2 region widths are even before YUV444 conversion, so an odd width reaches an assertion and aborts the client. A malicious or compromised RDP server can terminate a connected FreeRDP client…

  • Medium 6.5

    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 IRP_MJ_READ with Length 0xffffffff, causi…

  • Medium 6.5

    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, th…

  • Medium 6.5

    FreeRDP 3.0.0 before 3.32.0 Null Pointer Dereference via rdpsnd Fragment

    FreeRDP versions from 3.0.0 before 3.32.0 contain a null pointer dereference in the rdpsnd channel when a fragment sets CHANNEL_FLAG_LAST without CHANNEL_FLAG_FIRST. A malicious RDP server can send a malformed rdpsnd PDU on a fresh channel to crash the client…

  • Medium 6.5

    FreeRDP 2.0.0 before 3.32.0 Memory Exhaustion via DRDYNVC DATA_FIRST

    FreeRDP from 2.0.0 before 3.32.0 contains a memory exhaustion vulnerability in wts_read_drdynvc_data_first that allows authenticated clients to force servers to commit large memory allocations. Attackers can send a seven-byte DATA_FIRST message on an opened D…

  • Medium 6.5

    FreeRDP 2.0.0 before 3.32.0 Denial of Service via Serial IRP Null Handle

    FreeRDP from 2.0.0 before 3.32.0 contains a null pointer dereference vulnerability that allows malicious RDP servers to crash clients by sending out-of-lifecycle serial IRPs. Attackers can send IRP_MJ_READ or IRP_MJ_WRITE before create or after close, causing…

  • Medium 6.5

    FreeRDP 3.0.0 before 3.32.0 Infinite Loop DoS via Gateway Content-Type

    FreeRDP from 3.0.0 before 3.32.0 contains an infinite loop vulnerability in http_response_recv() that allows malicious gateways to exhaust client CPU via crafted Content-Type headers. Attackers controlling a gateway can return a nonzero Content-Length with a …

  • Medium 6.5

    FreeRDP 2.0.0 before 3.32.0 Memory Exhaustion via Static Channel Reassembly

    FreeRDP from 2.0.0 before 3.32.0 contains an unbounded reassembly vulnerability in WTSProcessChannelData that fails to enforce cumulative fragment limits. Authenticated clients can start a static virtual channel message, withhold the LAST flag, and send endle…

  • Medium 5.9

    FreeRDP 2.1.0 before 3.32.0 Use-After-Free via rdpsnd Disconnect Path

    FreeRDP 2.1.0 before 3.32.0 contains a use-after-free vulnerability in the static rdpsnd channel disconnect path, which frees audio formats and device without joining play_thread. A malicious RDP server can disconnect while asynchronous Wave2 playback process…

  • Medium 5.9

    FreeRDP before 3.32.0 Double Free via NSCodec plane growth failure

    FreeRDP before 3.32.0 contains a double-free vulnerability in nsc_context_initialize_encode() that leaves dangling plane pointers after a partial buffer growth failure. Attackers using a crafted RDP client can negotiate NSCodec with a large desktop geometry t…

  • Medium 5.9

    FreeRDP before 3.32.0 Denial of Service via Serial IRP_MJ_CREATE

    FreeRDP before 3.32.0 fails to close prior serial handles in serial_process_irp_create, allowing a malicious RDP server to exhaust file descriptors. Attackers can send repeated serial IRP_MJ_CREATE requests to accumulate descriptors and terminate the client a…

  • Medium 5.9

    FreeRDP before 3.32.0 Unbounded Memory Retention via RDPDR Proxy

    FreeRDP from 3.0.0-beta1 before 3.32.0 fails to enforce cumulative or absolute size limits when reassembling RDPDR channel fragments in the proxy. Attackers can send a FIRST fragment followed by continuation fragments without LAST, growing per-session heap st…

  • Medium 5.5

    FreeRDP 3.0.0 before 3.32.0 Heap Out-of-Bounds Read via Remote Assistance File Parsing

    FreeRDP 3.0.0 before 3.32.0 contains a heap out-of-bounds read in freerdp_assistance_parse_all_elements_of() because it advances its parsing cursor without reducing the remaining length, letting the scan window exceed the decrypted ConnectionString2 buffer. A…

  • Medium 5.3

    FreeRDP from 3.9.0 before 3.32.0 RDPEAR NULL Pointer Dereference via KERB_RPC_INTERNAL_NAME

    FreeRDP from 3.9.0 before 3.32.0 contains a NULL pointer dereference vulnerability in the RDPEAR NDR reader that allows malicious servers to crash clients via truncated KERB_RPC_INTERNAL_NAME data. Attackers can send a CreateApReqAuthenticatorReq with NameCou…

  • Medium 5.3

    FreeRDP 3.9.0 before 3.32.0 RDPEAR NDR Scalar Out-of-Bounds Read

    FreeRDP from 3.9.0 before 3.32.0 contains an out-of-bounds read vulnerability in the RDPEAR NDR scalar readers, which check value length before consuming alignment padding. Malicious or compromised RDP servers can send crafted unaligned RDPEAR payloads, such …

  • Medium 5.3

    FreeRDP 3.10.0 through 3.32.2 Heap Buffer Overflow in WinPR PNG Conversion

    FreeRDP 3.10.0 through 3.32.2 contains a heap buffer overflow in the WinPR png_write_data callback that writes past the buffer after a realloc failure. A malicious RDP clipboard peer can supply a large CF_DIB image that triggers out-of-bounds memcpy during PN…

  • Medium 5.3

    FreeRDP 3.0.0-beta4 before 3.32.0 NULL Pointer Crash via ARM Response

    FreeRDP 3.0.0-beta4 before 3.32.0 contains a NULL pointer dereference in arm_handle_request_ok when an ARM endpoint returns an empty HTTP 200 body. Attackers controlling the configured ARM gateway can return a zero-length body to pass NULL to strnlen and cras…

  • Medium 5.3

    FreeRDP 3.18.0 before 3.32.0 Heap Out-of-Bounds Write via ARM Redirected Username

    FreeRDP 3.18.0 before 3.32.0 has a heap-based out-of-bounds write in freerdp_interruptible_get_line, which shrinks the buffer to 32 bytes while keeping a pre-filled suggested username's length as its write offset. A malicious or compromised ARM routing servic…

  • Medium 5.3

    FreeRDP 3.0.0 before 3.32.0 Smartcard Use-After-Free via Concurrent Disconnect and Transmit

    FreeRDP 3.0.0 before 3.32.0 contains a heap use-after-free vulnerability in smartcard emulation when SCARD_IOCTL_DISCONNECT and SCARD_IOCTL_TRANSMIT operate concurrently on one card handle. A malicious RDP server can overlap these IRPs through separate contex…

  • Medium 5.3

    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 CREATE_R…

  • Medium 5.3

    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 PROTOCOL_RDSTLS or PROTOCOL_HYBRID_EX against its enabled protocol set in nego_process_negotiation_response(), allowing a security protocol downgrade. A malicious server or man-in-the-mid…

  • Medium 5.3

    FreeRDP 3.0.0 before 3.32.0 Cleartext Credential Disclosure via /restricted-admin

    FreeRDP 3.0.0 before 3.32.0 contains an insufficiently protected credentials vulnerability where the /restricted-admin option fails to suppress CredSSP credential delegation, sending the cleartext password to the RDP server. A compromised or man-in-the-middle…

  • Medium 5.3

    FreeRDP before 3.32.0 NULL Dereference via Zero-Length WebSocket Ping

    FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport that allows a malicious gateway to crash clients by sending zero-length pings. When the payload length is zero, websocket_reply_pong passes a nullptr stream to …

  • Medium 5.3

    FreeRDP from 3.30.0 before 3.32.0 Resource Exhaustion via rdpecam StartStreamsRequest

    FreeRDP from 3.30.0 before 3.32.0 contains a resource exhaustion vulnerability in the rdpecam client that lets malicious RDP servers request unadvertised camera media types. Attackers can send a StartStreamsRequest with oversized dimensions to force large pen…

  • Medium 4.4

    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 tem…

  • Medium 4.3

    FreeRDP 3.0.0-beta1 before 3.32.0 Stack Buffer Overflow via PKCS#11 Key Name

    FreeRDP 3.0.0-beta1 before 3.32.0 on Unix builds with PKCS#11 support has a stack-based buffer overflow in wprintKeyName() in WinPR's NCrypt PKCS#11 provider. It hex-encodes a key's CKA_ID, which can be up to 64 bytes, into a fixed 128-byte stack buffer. An a…

  • Medium 4.3

    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 smartcard_Transmit_Call that allows malicious RDP servers to read client memory. Servers can send SCardTransmit requests with an invalid card handle and nonzero rece…

  • Medium 4.3

    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 Actu…

  • Medium 4.3

    FreeRDP 3.13.0 before 3.32.0 Resource Leak via Drive Redirection IRP_MJ_CREATE

    FreeRDP versions 3.13.0 before 3.32.0 contain a resource retention flaw in drive_process_irp_create, which registers an opened local file in the drive dictionary before applying the allocation size and does not remove it when that operation fails. A malicious…

  • Medium 4.0

    FreeRDP 3.0.0 before 3.32.0 HTTP Header Injection via Proxy Routing Token

    FreeRDP 3.0.0 before 3.32.0 allows HTTP header injection in its proxy because a lone LF in the target portion of a routing token (Cookie: msts=) is not rejected and is written by http_proxy_connect into the CONNECT request line and Host header. A remote unaut…

  • Low 3.1

    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 …

  • Low 3.1

    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 presentatio…

  • Low 3.1

    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 publish…

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109240.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109241.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109242.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109243.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109244.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109245.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109246.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109247.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109248.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109249.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109250.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109252.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109253.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109254.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109256.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109257.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109676.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109677.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109678.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109679.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109680.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109939.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109940.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109941.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109942.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109943.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109944.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109945.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109946.html
  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-109947.html