CVE-2018-11751

Name: CVE-2018-11751
Creator: NVD / NIST
Published: 2019-12-16T22:15:11.043+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.61%

Last modified Jun 17, 2026

CVE-2018-11751 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Previous versions of Puppet Agent didn't verify the peer in the SSL connection prior to downloading the CRL. This issue is resolved in Puppet Agent 6.4.0.. EPSS estimates a 0.61% chance of exploitation in the next 30 days.

Description

Previous versions of Puppet Agent didn't verify the peer in the SSL connection prior to downloading the CRL. This issue is resolved in Puppet Agent 6.4.0.

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

0.61%

44.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-295

Affected Software

Vendor	Product	Versions
Puppet	Puppet Server	>= 6.0.0, < 6.4.0

References

https://puppet.com/security/cve/CVE-2018-11751Vendor Advisory
https://puppet.com/security/cve/CVE-2018-11751Vendor Advisory

Timeline

Published: Dec 16, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-11751?

Previous versions of Puppet Agent didn't verify the peer in the SSL connection prior to downloading the CRL. This issue is resolved in Puppet Agent 6.4.0.

How severe is CVE-2018-11751?

CVE-2018-11751 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.61% probability of exploitation in the next 30 days.

How do I fix CVE-2018-11751?

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-2018-11751?

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

Scan your code now

Source: NVD / NIST