What is CVE-2016-2788?

CVE-2016-2788 is a critical-severity vulnerability in Puppet Marionette Collective, classified under Improper Access Control. CVSS score: 9.8/10. Published 2017-02-13.

How severe is CVE-2016-2788?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Puppet Marionette Collective

CVE-2016-2788

MCollective 2.7.0 and 2.8.x before 2.8.9, as used in Puppet Enterprise, allows remote attackers to execute arbitrary code via vectors related to the mco ping command.

Published 2017-02-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.023 (82.9th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

Puppet Marionette Collective — versions 2.7.0, 2.8.0, 2.8.1
Puppet Enterprise

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

puppet.com/security/cve/cve-2016-2788 (Vendor Advisory)

Frequently asked questions

What is CVE-2016-2788?: CVE-2016-2788 is a critical-severity vulnerability in Puppet Marionette Collective, classified under Improper Access Control. CVSS score: 9.8/10. Published 2017-02-13.
How severe is CVE-2016-2788?: Critical severity. CVSS v3 base score is 9.8 out of 10.