What is CVE-2017-2292?

CVE-2017-2292 is a critical-severity vulnerability in Puppet Mcollective, classified under Deserialization of Untrusted Data. CVSS score: 9.0/10. Published 2017-06-30.

How severe is CVE-2017-2292?

Critical severity. CVSS v3 base score is 9.0 out of 10.

Deserialization in Puppet Mcollective

CVE-2017-2292

Versions of MCollective prior to 2.10.4 deserialized YAML from agents without calling safe_load, allowing the potential for arbitrary code execution on the server. The fix for this is to call YAML.safe_load on input. This has been tested in all Puppet-supplied MCollective plugins, but there is a chance that third-party plugins could rely on this insecure behavior.

Vulnerability class: Insecure Deserialization

Published 2017-06-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L.

EPSS exploit prediction

EPSS: 0.022 (81.6th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000

Affected products

Puppet Mcollective
Puppet Mcollective, Puppet, Enterprise — versions Puppet Enterprise prior to 2016.4.5, Puppet Enterprise 2016.5.x, Puppet Enterprise 2017.1.x, Puppet Agent prior to 1.10.1

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

puppet.com/security/cve/cve-2017-2292 (Vendor Advisory)
security.gentoo.org/glsa/201709-01 (vendor-advisory)

Frequently asked questions

What is CVE-2017-2292?: CVE-2017-2292 is a critical-severity vulnerability in Puppet Mcollective, classified under Deserialization of Untrusted Data. CVSS score: 9.0/10. Published 2017-06-30.
How severe is CVE-2017-2292?: Critical severity. CVSS v3 base score is 9.0 out of 10.