CVE-2026-45700 - Heap-buffer-overflow write in planar bitmap decoder

CVE-2026-45700 - Heap-buffer-overflow write in planar bitmap decoder

https://cvefeed.io/rssfeed/latest.atom / Fri, 05/29/2026 - 23:26
CVE ID :CVE-2026-45700
Published : May 29, 2026, 8:16 p.m. | 45 minutes ago
Description :FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, FreeRDP's planar bitmap decoder has an out-of-bounds heap write when decoding RLE planar data. In libfreerdp/codec/planar.c, freerdp_bitmap_decompress_planar() validates the X destination coordinate nXDst against the caller-provided destination stride (nDstStep) even when it is writing into the internal temp buffer pTempData. An attacker can bypass the check with a large nDstStep and a large nXDst, causing planar_decompress_plane_rle() to write past the end of pTempData. This vulnerability is fixed in 3.26.0.
Severity: 7.7 | HIGH
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