CVE-2018-20743: Debian Linux

High severity, CVSS 7.5. EPSS: 3.6% chance of exploitation in the next 30 days.

murmur in Mumble through 1.2.19 before 2018-08-31 mishandles multiple concurrent requests that are persisted in the database, which allows remote attackers to cause a denial of service (daemon hang or crash) via a message flood.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only
• Mumble Mumble: up to and including 1.2.19

Published 2019-01-25. Last modified 2026-06-17.