CVE-2020-11911: Treck Tcp/ip

Medium severity, CVSS 5.3. EPSS: 3.1% chance of exploitation in the next 30 days.

The Treck TCP/IP stack before 6.0.1.66 has Improper ICMPv4 Access Control.

Affected products

• Treck Tcp/ip: before 6.0.1.66 (fixed in 6.0.1.66)

Published 2020-06-17. Last modified 2026-06-17.