CVE-2016-2786

Name: CVE-2016-2786
Creator: NVD / NIST
Published: 2016-06-10T15:59:01.343+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.56%

Last modified Jun 17, 2026

CVE-2016-2786 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. The pxp-agent component in Puppet Enterprise 2015.3.x before 2015.3.3 and Puppet Agent 1.3.x before 1.3.6 does not properly validate server certificates, which might allow remote attackers to spoof brokers and execute arbitrary commands via a crafted certificate.. EPSS estimates a 1.56% chance of exploitation in the next 30 days.

Description

The pxp-agent component in Puppet Enterprise 2015.3.x before 2015.3.3 and Puppet Agent 1.3.x before 1.3.6 does not properly validate server certificates, which might allow remote attackers to spoof brokers and execute arbitrary commands via a crafted certificate.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.56%

72.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Puppet	Puppet Agent	1.3.0
Puppet	Puppet Agent	1.3.1
Puppet	Puppet Agent	1.3.2
Puppet	Puppet Agent	1.3.4
Puppet	Puppet Agent	1.3.5
Puppet	Puppet Enterprise	2015.3.0
Puppet	Puppet Enterprise	2015.3.2

References

https://puppet.com/security/cve/CVE-2016-2786Vendor Advisory
https://security.gentoo.org/glsa/201606-02Third Party Advisory
https://puppet.com/security/cve/CVE-2016-2786Vendor Advisory
https://security.gentoo.org/glsa/201606-02Third Party Advisory

Timeline

Published: Jun 10, 2016
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-2786?

How severe is CVE-2016-2786?

CVE-2016-2786 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.56% probability of exploitation in the next 30 days.

How do I fix CVE-2016-2786?

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-2016-2786?

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

Scan your code now

Source: NVD / NIST