ACTIVELY EXPLOITED

CVE-2020-11899: Treck TCP/IP stack Out-of-Bounds Read Vulnerability

Facts
VendorTreck TCP/IP stack
ProductIPv6
Actively exploitedYes
Added to CISA KEV3 Mar 2022
CISA federal deadline17 Mar 2022
Weakness (CWE)CWE-125

Required action (CISA's text)

Apply updates per vendor instructions.

Description (NVD)

The Treck TCP/IP stack contains an IPv6 out-of-bounds read vulnerability.

SOURCES

Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.