CVE-2020-11899

MEDIUM5.4

CISA KEV

Published 2020-06-17 · Updated 2026-06-17 · Source cve@mitre.org

Summary

CVE-2020-11899 is a medium-severity (CVSS 5.4) vulnerability in Treck TCP/IP stack IPv6. CISA added it to the Known Exploited Vulnerabilities catalog on March 3, 2022, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by March 17, 2022. CISA does not currently list it as used in ransomware campaigns.

All 1 known-exploited Treck TCP/IP stack vulnerabilities →

Description

The Treck TCP/IP stack before 6.0.1.66 has an IPv6 Out-of-bounds Read.

CVSS vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CWE-125CWE-125

CISA Known-Exploited Vulnerability

Product: Treck TCP/IP stack — IPv6

Name: Treck TCP/IP stack Out-of-Bounds Read Vulnerability

Date added: 2022-03-03 · Due: 2022-03-17

Required action: Apply updates per vendor instructions.

References

View on NVD

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