CVE-2016-3707: Linux Kernel-Rt

High severity, CVSS 8.1. EPSS: 3.4% chance of exploitation in the next 30 days.

The icmp_check_sysrq function in net/ipv4/icmp.c in the kernel.org projects/rt patches for the Linux kernel, as used in the kernel-rt package before 3.10.0-327.22.1 in Red Hat Enterprise Linux for Real Time 7 and other products, allows remote attackers to execute SysRq commands via crafted ICMP Echo Request packets, as demonstrated by a brute-force attack to discover a cookie, or an attack that occurs after reading the local icmp_echo_sysrq file.

Affected products

• Linux Linux Kernel-Rt: up to and including 3.10.0
• Novell Suse Linux Enterprise Real Time Extension: version 12.0 only
• Red Hat Enterprise Linux For Real Time: version 7 only
• Red Hat Enterprise Linux For Real Time For Nfv: version 7 only

Published 2016-06-27. Last modified 2026-06-17.