CVE-2014-3251: The MCollective aes_security plugin, as used in Puppet Enterprise before 3.3.0 and Mcollective before 2.5.3...

Security readout for executives and security teams

This flaw affects the MCollective aes_security plugin used with older Puppet Enterprise and MCollective releases. A local user could potentially create unauthorized MCollective connections because new server certificates were not properly validated against the CA certificate. The public bundle does not provide CVSS, detailed exploit mechanics, or confirmed active exploitation. Exposure is most likely in legacy Puppet Enterprise or MCollective deployments still using the aes_security plugin below the listed version thresholds. Modern environments without MCollective, without local untrusted users on managed hosts, or running later versions are less likely exposed. Treat this as a legacy infrastructure exposure question rather than a broad emergency. Prioritize if MCollective remains in use on systems with local shared access. The absence of CVSS and active exploitation evidence limits confidence, but unauthorized orchestration access can carry meaningful operational risk. Mitigation focus: Identify any Puppet Enterprise versions earlier than 3.3.0.; Identify any MCollective installations earlier than 2.5.3.; Move affected systems off the listed vulnerable versions where supported..

Prepared

Jun 14, 2026, 07:14 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.