CVE-2026-121411

Public on 2026-11-03
Modified on 2026-11-10
Description
FreeRDP before 3.32.2 fails to bound server-supplied target dimensions and output origin in RDPGFX MAPSURFACETOSCALEDOUTPUT PDUs, allowing malicious RDP servers to abort X11 clients. Attackers can map a surface to oversized scaled output, triggering checked UINT16 cast or freerdp_image_scale stride assertion failures that terminate the client.
Severity
Low severity
Low
See what this means
CVSS v3 Base Score
3.1
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core freerdp Pending Fix
Amazon Linux 2023 freerdp Pending Fix
Amazon Linux 2027 Preview freerdp Pending Fix

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 3.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2026-121411 Mitre: CVE-2026-121411