CVE-2018-8785: Canonical Ubuntu Linux

Critical severity, CVSS 9.8. EPSS: 7.3% chance of exploitation in the next 30 days.

FreeRDP prior to version 2.0.0-rc4 contains a Heap-Based Buffer Overflow in function zgfx_decompress() that results in a memory corruption and probably even a remote code execution.

Affected products

• Canonical Ubuntu Linux: version 18.04 only; version 18.10 only
• Freerdp Freerdp: up to and including 1.2.0; version 2.0.0 only

Published 2018-11-29. Last modified 2026-06-17.