CVE-2026-111378

FreeRDP before 3.32.0 contains a client-side heap out-of-bounds write vulnerability in general_LumaToYUV444 and general_ChromaV2ToYUV444. A malicious RDP server can send RDPGFX AVC444 or AVC444v2 frames with odd-height region rects ending at surface height, causing writes past the U/V planes.

FreeRDP before 3.32.0 contains a heap buffer overflow vulnerability in persistent_cache_read_entry_v2. A local attacker can corrupt heap memory via integer wraparound in bitmap size calculation by supplying a crafted v2 persistent cache file with oversized width and height values.

FreeRDP from 3.29.0 before 3.32.0 contains an integer overflow in the Apple audin backends (audin_mac.m, audin_ios.m). The audio queue buffer size is computed as FramesPerPacket * 2 * nChannels in UINT32 arithmetic, bypassing the CVE-2026-91962 fix. A malicious RDP server can send FramesPerPacket of 2^30 in the audin Open PDU, causing the multiplication to wrap and undersized AudioQueueAllocateBuffer allocations, leading to a heap out-of-bounds write in macOS and iOS clients.

FreeRDP before 3.32.0 contains a heap buffer overflow vulnerability in persistent_cache_read_entry_v3. A local attacker can corrupt memory by supplying a crafted v3 persistent cache file with large width and height values that wrap the size calculation in persist_cache_get_data, causing fread to overflow an undersized buffer.

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.

FreeRDP from 3.30.0 before 3.32.0 contains a heap out-of-bounds read vulnerability in the Windows client's CliprdrStream_New that allows malicious RDP servers to trigger invalid memory reads via short clipboard responses. Attackers can answer a FILECONTENTS_SIZE request with a cbRequested of fewer than eight bytes when a user pastes a remote file.

FreeRDP from 3.0.0 before 3.32.0 contains an out-of-bounds read vulnerability in the Windows RAIL client. A malicious RDP server can send a non-NUL-terminated window title, causing heap over-reads, title corruption, or client crashes.

FreeRDP from 3.30.0 before 3.32.0 contains a resource exhaustion vulnerability in the rdpecam client. A malicious RDP server can request unadvertised camera media types by sending a StartStreamsRequest with oversized dimensions, forcing large allocations and reconfiguring the local camera via the HAL.

FreeRDP before 3.32.0 contains a NULL pointer dereference vulnerability in the websocket transport. A malicious gateway can send zero-length pings, causing a nullptr stream to be passed to websocket_reply_close and crashing the client.

FreeRDP before version 3.21.0 has a vulnerability in FastGlyph parsing where data length is not validated against the minimum size implied by cx/cy. A malicious server can trigger a client-side global buffer overflow, causing a crash (DoS).