CVE-2016-2147: Busybox

High severity, CVSS 7.5. EPSS: 7.7% chance of exploitation in the next 30 days.

Integer overflow in the DHCP client (udhcpc) in BusyBox before 1.25.0 allows remote attackers to cause a denial of service (crash) via a malformed RFC1035-encoded domain name, which triggers an out-of-bounds heap write.

Affected products

• Busybox Busybox: up to and including 1.24.2
• 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

Published 2017-02-09. Last modified 2026-06-17.