CVE-2026-55648

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, freerdpimagecopyfromicondata in libfreerdp/codec/color.c calculates nWidth multiplied by nHeight multiplied by FreeRDPGetBytesPerPixelformat in 32-bit arithmetic. A malicious RDP server can send a RAIL TSICONINFO...

CVE-2026-55192

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, FreeRDP H.264 decoder backends can return YUV planes sized from the bitstream without comparing the decoded width and height to the RDPGFX surface dimensions used to validate region rectangles. A malicious RDP serve...

CVE-2026-69159

...

CVE-2026-69159 FreeRDP: Out-of-Bounds Read in Planar RLE Decoder (planar_decompress_plane_rle / planar_decompress_plane_rle_only)

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.29.0, planardecompressplanerle and planardecompressplanerleonly in libfreerdp/codec/planar.c verify that a control byte exists but do not verify that the source buffer contains the zero to fifteen raw bytes declared by th...

EUVD-2026-62673

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.29.0, planardecompressplanerle and planardecompressplanerleonly in libfreerdp/codec/planar.c verify that a control byte exists but do not verify that the source buffer contains the zero to fifteen raw bytes declared by th...

CVE-2026-63633

The FreeRDP software (prior to version 3.28.0 ) is vulnerable to a heap buffer overflow in the Opus audio decode functionality. The root cause is located in libfreerdp/codec/dsp.c, where the freerdp_dsp_decode_opus function calls Stream_EnsureRemainingCapacity even though opus_decode writes decod...

CVE-2026-63633 FreeRDP: Heap buffer overflow in Opus audio decode (`freerdp_dsp_decode_opus` resizes the wrong stream) — server→client

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, freerdpdspdecodeopus in libfreerdp/codec/dsp.c calls StreamEnsureRemainingCapacity on context-common.buffer even though opusdecode writes decoded PCM into the caller-supplied out stream. A malicious RDP server that...

CVE-2026-63633 FreeRDP: Heap buffer overflow in Opus audio decode (`freerdp_dsp_decode_opus` resizes the wrong stream) — server→client

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, freerdpdspdecodeopus in libfreerdp/codec/dsp.c calls StreamEnsureRemainingCapacity on context-common.buffer even though opusdecode writes decoded PCM into the caller-supplied out stream. A malicious RDP server that...

CVE-2026-63652 FreeRDP: Double-free of `client_formats` in the rdpsnd server channel on a malformed Client Audio Formats PDU

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, rdpsndserverrecvformats in channels/rdpsnd/server/rdpsndmain.c frees context-clientformats on a malformed Client Audio Formats PDU without clearing the owning pointer or numclientformats. An authenticated RDP client...

EUVD-2026-62671

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, rdpsndserverrecvformats in channels/rdpsnd/server/rdpsndmain.c frees context-clientformats on a malformed Client Audio Formats PDU without clearing the owning pointer or numclientformats. An authenticated RDP client...

CVE-2026-63117

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, an authenticated RDP client can advertise DVI ADPCM with nBlockAlign equal to 8 and nChannels equal to 2 to make the bs calculation in rdpsndserverselectformat in channels/rdpsnd/server/rdpsndmain.c equal zero. The...

CVE-2026-63117 FreeRDP: Denial of service through ADPCM frame size calculation

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, an authenticated RDP client can advertise DVI ADPCM with nBlockAlign equal to 8 and nChannels equal to 2 to make the bs calculation in rdpsndserverselectformat in channels/rdpsnd/server/rdpsndmain.c equal zero. The...

CVE-2026-55192

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, FreeRDP H.264 decoder backends can return YUV planes sized from the bitstream without comparing the decoded width and height to the RDPGFX surface dimensions used to validate region rectangles. A malicious RDP serve...

CVE-2026-55192

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, FreeRDP H.264 decoder backends can return YUV planes sized from the bitstream without comparing the decoded width and height to the RDPGFX surface dimensions used to validate region rectangles. A malicious RDP serve...

CVE-2026-55564 FreeRDP: Out-of-bounds read in glyph_cache_get via crafted glyph fragments

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, the glyphcacheget function in libfreerdp/cache/glyph.c checks whether index is greater than cache-number instead of greater than or equal to it. A malicious RDP server can use GLYPHFRAGMENTUSE replay in...

CVE-2026-55564 FreeRDP: Out-of-bounds read in glyph_cache_get via crafted glyph fragments

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, the glyphcacheget function in libfreerdp/cache/glyph.c checks whether index is greater than cache-number instead of greater than or equal to it. A malicious RDP server can use GLYPHFRAGMENTUSE replay in...

CVE-2026-55564

The FreeRDP RDP client is vulnerable to an out-of-bounds heap read in the glyph_cache_get function located in libfreerdp/cache/glyph.c. The root cause is an incorrect bounds check that uses the greater than (>) operator instead of the greater than or equal to (>=) operator. A malicious RDP ...

PT-2026-78849

Name of the Vulnerable Software and Affected Versions Wireshark versions 4.6.0 through 4.6.7 Wireshark versions 4.4.0 through 4.4.18 Description A heap-based buffer overflow occurs in the RDP protocol dissector, which can lead to a crash and result in a denial of service. Recommendations Update...

CVE-2026-63652: Double Free

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0, rdpsndserverrecvformats in channels/rdpsnd/server/rdpsndmain.c frees context-clientformats on a malformed Client Audio Formats PDU without clearing the owning pointer or numclientformats. An authenticated RDP client...

PT-2026-78560

Name of the Vulnerable Software and Affected Versions FreeRDP versions prior to 3.29.0 Description In the libfreerdp/codec/planar.c file, the functions planar decompress plane rle and planar decompress plane rle only verify the existence of a control byte but fail to confirm if the source buffer...