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 update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-2788 is rated High Risk (67.8/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 2.28%). High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-2788

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.96% 2.28% +0.33%
2 2025-10-17 2.09% 1.96% -0.14%
3 2025-03-30 — 2.09% —

Full EPSS history (19 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-2788

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2016-2788

OS Trackers for CVE-2016-2788

vendor priority summary link
debian not yet assigned CVE-2016-2788 not yet assigned priority: Debian including 1 source packages (mcollective), 2 status rows across 2 suites (bookworm, bullseye): resolved 2. https://security-tracker.debian.org/tracker/CVE-2016-2788
redhat medium — https://access.redhat.com/security/cve/CVE-2016-2788
ubuntu medium CVE-2016-2788 medium priority: Ubuntu including 1 source packages (mcollective), 9 status rows across 9 suites (artful, bionic, cosmic, precise, trusty, upstream, xenial, yakkety, zesty): ignored 4, not-affected 3, DNE 1, needs-triage 1. https://ubuntu.com/security/CVE-2016-2788

Affected software / configurations for CVE-2016-2788

Vendor Product Version Raw CPE
puppet marionette_collective 2.7.0 cpe:2.3:a:puppet:marionette_collective:2.7.0:*:*:*:*:*:*:*
puppet marionette_collective 2.8.0 cpe:2.3:a:puppet:marionette_collective:2.8.0:*:*:*:*:*:*:*
puppet marionette_collective 2.8.1 cpe:2.3:a:puppet:marionette_collective:2.8.1:*:*:*:*:*:*:*
puppet marionette_collective 2.8.2 cpe:2.3:a:puppet:marionette_collective:2.8.2:*:*:*:*:*:*:*
puppet marionette_collective 2.8.3 cpe:2.3:a:puppet:marionette_collective:2.8.3:*:*:*:*:*:*:*
puppet marionette_collective 2.8.4 cpe:2.3:a:puppet:marionette_collective:2.8.4:*:*:*:*:*:*:*
puppet marionette_collective 2.8.5 cpe:2.3:a:puppet:marionette_collective:2.8.5:*:*:*:*:*:*:*
puppet marionette_collective 2.8.6 cpe:2.3:a:puppet:marionette_collective:2.8.6:*:*:*:*:*:*:*
puppet marionette_collective 2.8.7 cpe:2.3:a:puppet:marionette_collective:2.8.7:*:*:*:*:*:*:*
puppet marionette_collective 2.8.8 cpe:2.3:a:puppet:marionette_collective:2.8.8:*:*:*:*:*:*:*
puppet puppet_enterprise >= 3.8.0, < 3.8.6 cpe:2.3:a:puppet:puppet_enterprise:*:*:*:*:*:*:*:*
puppet puppet_enterprise >= 2016.2.0, < 2016.2.1 cpe:2.3:a:puppet:puppet_enterprise:*:*:*:*:*:*:*:*

References for CVE-2016-2788

cvelogic Threat Intelligence