CVE-2020-12066: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 3% chance of exploitation in the next 30 days.

CServer::SendMsg in engine/server/server.cpp in Teeworlds 0.7.x before 0.7.5 allows remote attackers to shut down the server.

Affected products

• Canonical Ubuntu Linux: version 20.04 only
• Debian Debian Linux: version 10.0 only
• Fedoraproject Fedora: version 30 only
• Opensuse Backports Sle: version 15.0 only
• Opensuse Leap: version 15.1 only
• Teeworlds Teeworlds: from 0.7.0, before 0.7.5 (fixed in 0.7.5)

Published 2020-04-22. Last modified 2026-06-17.