CVE-2020-11899

Name: CVE-2020-11899
Creator: NVD / NIST
Published: 2020-06-17T11:15:10.21+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10Actively ExploitedEPSS 18.42%

Last modified Jun 17, 2026

CVE-2020-11899 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. The Treck TCP/IP stack before 6.0.1.66 has an IPv6 Out-of-bounds Read.. CISA has confirmed active exploitation in the wild. EPSS estimates a 18.42% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

18.42%

96.9th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Mar 17, 2022.

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Treck	Tcp\/Ip	< 6.0.1.66
Dell	Wyse 5050 All-In-One Firmware	All versions
Dell	Wyse 7030 Firmware	All versions
Dell	Wyse 5030 Firmware	All versions

References

http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-006.txtBroken Link, Third Party Advisory
https://cwe.mitre.org/data/definitions/125.htmlTechnical Description
https://jsof-tech.com/vulnerability-disclosure-policy/Broken Link, Third Party Advisory
https://security.netapp.com/advisory/ntap-20200625-0006/Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-treck-ip-stack-JyBQ5GyCThird Party Advisory
https://www.dell.com/support/article/de-de/sln321836/dell-response-to-the-ripple20-vulnerabilitiesThird Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00295.htmlThird Party Advisory
https://www.jsof-tech.com/ripple20/Broken Link, Exploit, Third Party Advisory
https://www.kb.cert.org/vuls/id/257161Third Party Advisory, US Government Resource
https://www.kb.cert.org/vuls/id/257161/Mitigation, Third Party Advisory, US Government Resource
https://www.treck.comProduct, Vendor Advisory
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-006.txtBroken Link, Third Party Advisory
https://cwe.mitre.org/data/definitions/125.htmlTechnical Description
https://jsof-tech.com/vulnerability-disclosure-policy/Broken Link, Third Party Advisory
https://security.netapp.com/advisory/ntap-20200625-0006/Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-treck-ip-stack-JyBQ5GyCThird Party Advisory
https://www.dell.com/support/article/de-de/sln321836/dell-response-to-the-ripple20-vulnerabilitiesThird Party Advisory
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00295.htmlThird Party Advisory
https://www.jsof-tech.com/ripple20/Broken Link, Exploit, Third Party Advisory
https://www.kb.cert.org/vuls/id/257161Third Party Advisory, US Government Resource
https://www.kb.cert.org/vuls/id/257161/Mitigation, Third Party Advisory, US Government Resource
https://www.treck.comProduct, Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-11899US Government Resource

Timeline

Published: Jun 17, 2020
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2020-11899?

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

How severe is CVE-2020-11899?

CVE-2020-11899 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 18.42% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2020-11899?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-11899?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST