CVE-2018-15126: Canonical Ubuntu Linux

Critical severity, CVSS 9.8. EPSS: 11.8% chance of exploitation in the next 30 days.

LibVNC before commit 73cb96fec028a576a5a24417b57723b55854ad7b contains heap use-after-free vulnerability in server code of file transfer extension that can result remote code execution

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 16.04 only; version 18.04 only; version 18.10 only
• Debian Debian Linux: version 8.0 only; version 9.0 only
• Libvnc Project Libvncserver: before 0.9.12 (fixed in 0.9.12)

Published 2018-12-19. Last modified 2026-06-17.