CVE-2010-4563: Linux Kernel

Medium severity, CVSS 5.0. EPSS: 2.9% chance of exploitation in the next 30 days.

The Linux kernel, when using IPv6, allows remote attackers to determine whether a host is sniffing the network by sending an ICMPv6 Echo Request to a multicast address and determining whether an Echo Reply is sent, as demonstrated by thcping.

Affected products

• Linux Linux Kernel: any version

Published 2012-02-02. Last modified 2026-06-16.