CVE-2017-6214: Linux Kernel

High severity, CVSS 7.5. EPSS: 4.7% chance of exploitation in the next 30 days.

The tcp_splice_read function in net/ipv4/tcp.c in the Linux kernel before 4.9.11 allows remote attackers to cause a denial of service (infinite loop and soft lockup) via vectors involving a TCP packet with the URG flag.

Affected products

• Linux Linux Kernel: up to and including 4.9.10

Published 2017-02-23. Last modified 2026-06-17.