CVE-2025-71264: Mumble

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Mumble before 1.6.870 is prone to an out-of-bounds array access, which may result in denial of service (client crash).

Affected products

• Mumble Mumble: before 1.6.870 (fixed in 1.6.870)

Published 2026-03-16. Last modified 2026-06-17.