How severe is CVE-2013-3567?

CVE-2013-3567 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2013-3567 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-3567?

CVE-2013-3567 primarily affects Puppet. In total, 41 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-3567?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2013-3567 published?

CVE-2013-3567 was published on 2013-08-19 and last updated on 2026-06-16.

CVE-2013-3567

CVE-2013-3567 is a high-severity vulnerability in Puppet with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 3% (87th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Puppet
Published: 2013-08-19
Last modified: 2026-06-16

Description

Puppet 2.7.x before 2.7.22 and 3.2.x before 3.2.2, and Puppet Enterprise before 2.8.2, deserializes untrusted YAML, which allows remote attackers to instantiate arbitrary Ruby classes and execute arbitrary code via a crafted REST API call.

Frequently asked questions

What is CVE-2013-3567?: Puppet 2.7.x before 2.7.22 and 3.2.x before 3.2.2, and Puppet Enterprise before 2.8.2, deserializes untrusted YAML, which allows remote attackers to instantiate arbitrary Ruby classes and execute arbitrary code via a crafted REST API call.
How severe is CVE-2013-3567?: CVE-2013-3567 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2013-3567 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (87th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-3567?: CVE-2013-3567 primarily affects Puppet. In total, 41 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-3567?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2013-3567 published?: CVE-2013-3567 was published on 2013-08-19 and last updated on 2026-06-16.

References

Affected products (41)

cpe:2.3:a:puppet:puppet:2.7.2:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.7.10:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.7.11:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.7.12:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.7.13:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.7.14:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.7.16:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.7.17:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.7.18:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:2.7.21:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet:3.2.1:*:*:*:*:*:*:*
cpe:2.3:a:puppetlabs:puppet:2.7.0:*:*:*:*:*:*:*
cpe:2.3:a:puppetlabs:puppet:2.7.1:*:*:*:*:*:*:*
cpe:2.3:a:puppetlabs:puppet:2.7.19:*:*:*:*:*:*:*
cpe:2.3:a:puppetlabs:puppet:2.7.20:*:*:*:*:*:*:*
cpe:2.3:a:puppetlabs:puppet:2.7.20:rc1:*:*:*:*:*:*
cpe:2.3:a:puppetlabs:puppet:3.2.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:-:lts:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:13.04:*:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_desktop:11:sp3:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_desktop:11.0:sp2:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp2:*:*:*:vmware:*:*
cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp3:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp3:*:*:*:vmware:*:*
cpe:2.3:a:puppet:puppet_enterprise:*:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet_enterprise:1.0:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet_enterprise:1.1:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet_enterprise:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet_enterprise:2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet_enterprise:2.5.1:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet_enterprise:2.5.2:*:*:*:*:*:*:*
cpe:2.3:a:puppet:puppet_enterprise:2.8.0:*:*:*:*:*:*:*
cpe:2.3:a:puppetlabs:puppet:1.0.0:-:enterprise:*:*:*:*:*
cpe:2.3:a:puppetlabs:puppet:1.1.0:-:enterprise:*:*:*:*:*
cpe:2.3:a:puppetlabs:puppet:1.2.0:-:enterprise:*:*:*:*:*
cpe:2.3:a:puppetlabs:puppet:2.5.0:-:enterprise:*:*:*:*:*
cpe:2.3:a:puppetlabs:puppet:2.6.0:-:enterprise:*:*:*:*:*
cpe:2.3:a:puppetlabs:puppet:2.7.0:-:enterprise:*:*:*:*:*
cpe:2.3:a:puppetlabs:puppet:2.7.1:-:enterprise:*:*:*:*:*

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