CVE-2026-57158

medium

Description

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.

References

https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mp3f-59pg-c5pp

https://github.com/FreeRDP/FreeRDP/releases/tag/3.28.0

https://github.com/FreeRDP/FreeRDP/pull/12952

https://github.com/FreeRDP/FreeRDP/commit/a7e797626fcb7f1d556ce63febb84f9f4a822731

Details

Source: Mitre, NVD

Published: 2026-07-10

Updated: 2026-07-14

Risk Information

CVSS v2

Base Score: 9.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:C

Severity: High

CVSS v3

Base Score: 9.1

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Severity: Critical

CVSS v4

Base Score: 5.1

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

Severity: Medium

EPSS

EPSS: 0.00528