CVE-2026-57158CWE-125

FreeRDP planar_decompress_plane_rle_only: heap OOB read — incomplete fix for CVE-2026-23530

Medium · published July 10, 2026

CVSS v4.0
5.1
EPSS
1%
Percentile
52.2
In the wild
Unconfirmed
What it is

FreeRDP is a free implementation of the Remote Desktop Protocol. From 3.21.0 before 3.28.0, FreeRDP clients using the GFX pipeline contain an incomplete fix for CVE-2026-23530 in planar_decompress_plane_rle_only in libfreerdp/codec/planar.c, allowing a malicious RDP server to send a truncated RDPGFX_CMDID_WIRETOSURFACE_1 planar payload that reads one byte past the input buffer. This issue is fixed in version 3.28.0.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
EPSS
0.00690 · 52.2th percentile
Weakness
CWE-125 · Out-of-bounds Read
Published
2026-07-10T19:49Z
EPSS history
Timeline
  • 10 JUL 19:49Z
    FreeRDP planar_decompress_plane_rle_only: heap OOB read — incomplete fix for CVE-2026-23530
    cvelistv5