CVE-2026-45700
Critical · 9.8CVSS
9.8
EPSS
0.8%
Published
May 29, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| openSUSE:Leap 16.0 | freerdp | 0 | 3.26.0-160000.1.1 |
| openSUSE:Tumbleweed | freerdp | 0 | 3.26.0-3.1 |
Related vulnerabilities
- CVE-2026-44420 FreeRDP is a free implementation of the Remote Desktop Protocol. Also affects freerdp
- CVE-2026-44422 FreeRDP is a free implementation of the Remote Desktop Protocol. Also affects freerdp
- CVE-2026-44421 FreeRDP is a free implementation of the Remote Desktop Protocol. Also affects freerdp
- CVE-2026-40033 FreeRDP before 3.26.0 contains a heap-buffer-overflow vulnerability in gdi_CacheToSurface… Also affects freerdp
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- CVE-2026-33986 FreeRDP is a free implementation of the Remote Desktop Protocol. Also affects freerdp