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.
Metrics
CVSS 3.1 9.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| FreeRDP | FreeRDP | >= 3.21.0, < 3.28.0 |
References
- https://github.com/FreeRDP/FreeRDP/commit/a7e797626fcb7f1d556ce63febb84f9f4a822731Patch
- https://github.com/FreeRDP/FreeRDP/pull/12952Patch
- https://github.com/FreeRDP/FreeRDP/releases/tag/3.28.0Release Notes
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mp3f-59pg-c5ppExploit, Vendor Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mp3f-59pg-c5ppExploit, Vendor Advisory
Timeline
- Published
- Jul 10, 2026
- Last modified
- Jul 14, 2026
- NVD status
- Modified