Out-of-bounds write in FreeRDP - CVE-2026-45700
Published: May 12, 2026 / Updated: June 16, 2026
FreeRDP
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service and potentially execute arbitrary code.
The vulnerability exists due to out-of-bounds write in freerdp_bitmap_decompress_planar() and planar_decompress_plane_rle() in the planar bitmap decoder when decoding RLE planar data with a large destination stride and X destination coordinate that trigger the temp-buffer code path. A remote attacker can send specially crafted planar bitmap data to cause a denial of service and potentially execute arbitrary code.
No FreeRDP server or client is affected; the issue affects third-party implementations that use their own decoding system and utilize the FreeRDP planar decoder.