freerdp: FreeRDP: Arbitrary code execution via heap out-of-bounds write in RLE planar decode path

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol RDP. A malicious RDP server can exploit a heap out-of-bounds write vulnerability in the planardecompressplanerle function. This vulnerability allows the server to write past the end of a temporary buffer, potentiall...

CVE-2026-26965

CVE-2026-26965 affects FreeRDP: a heap out-of-bounds write in the RLE planar decode path (planar_decompress_plane_rle) writes beyond destination bounds when TempFormat != DstFormat, risking an attacker-controlled offset and pixel data. The write can corrupt adjacent memory (NSC_CONTEXT.decode poi...