Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Freerdp | Freerdp | >= 3.21.0, < 3.28.0 |
Related Weaknesses (CWE)
References
- https://github.com/FreeRDP/FreeRDP/commit/a7e797626fcb7f1d556ce63febb84f9f4a8227Patch
- 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-c5ppExploitVendor Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-mp3f-59pg-c5ppExploitVendor Advisory
FAQ
What is CVE-2026-57158?
CVE-2026-57158 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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_pla...
How severe is CVE-2026-57158?
CVE-2026-57158 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-57158?
Check the references section above for vendor advisories and patch information. Affected products include: Freerdp Freerdp.