CVE-2020-17366

Name: CVE-2020-17366
Creator: NVD / NIST
Published: 2020-08-05T22:15:12.277+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.4/10EPSS 0.75%

Last modified Jun 17, 2026

CVE-2020-17366 is a high-severity vulnerability rated 7.4/10 on the CVSS scale. An issue was discovered in NLnet Labs Routinator 0.1.0 through 0.7.1. It allows remote attackers to bypass intended access restrictions or to cause a denial of service on dependent routing systems by strategically withholding RPKI Route Origin Authorisation ".roa" files or X509 Certificate Revocation List files from the RPKI relying party's view.. EPSS estimates a 0.75% chance of exploitation in the next 30 days.

Description

An issue was discovered in NLnet Labs Routinator 0.1.0 through 0.7.1. It allows remote attackers to bypass intended access restrictions or to cause a denial of service on dependent routing systems by strategically withholding RPKI Route Origin Authorisation ".roa" files or X509 Certificate Revocation List files from the RPKI relying party's view.

Metrics

CVSS 3.1

7.4/10

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

EPSS Probability

0.75%

50.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Nlnetlabs	Routinator	>= 0.1.0, <= 0.7.1

References

https://github.com/NLnetLabs/routinator/issues/319Exploit, Issue Tracking, Third Party Advisory
https://github.com/NLnetLabs/routinator/releases/tag/v0.8.0Release Notes, Third Party Advisory
https://github.com/NLnetLabs/routinator/issues/319Exploit, Issue Tracking, Third Party Advisory
https://github.com/NLnetLabs/routinator/releases/tag/v0.8.0Release Notes, Third Party Advisory

Timeline

Published: Aug 5, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-17366?

How severe is CVE-2020-17366?

CVE-2020-17366 has a CVSS score of 7.4/10 (HIGH severity). The EPSS model estimates a 0.75% probability of exploitation in the next 30 days.

How do I fix CVE-2020-17366?

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-2020-17366?

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

Scan your code now

Source: NVD / NIST