Is CVE-2012-3867 being actively exploited?

CVE-2012-3867 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-3867?

CVE-2012-3867 has a CVSS 2.0 base score of 4.3 (MEDIUM).

CVE-2012-3867

MEDIUM · CVSS 4.3EPSS 2.5%EU EUVD

lib/puppet/ssl/certificate_authority.rb in Puppet before 2.6.17 and 2.7.x before 2.7.18, and Puppet Enterprise before 2.5.2, does not properly restrict the characters in the Common Name field of a Certificate Signing Request (CSR), which makes it easier for user-assisted remote attackers to trick administrators into signing a crafted agent certificate via ANSI control sequences.

Key facts

CVSS score: 4.3 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
Weakness (CWE): CWE-264
EPSS score: 2.5% (84th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2017-0285)
Published: August 6, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2017-0285 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
debian / debian linux
opensuse / opensuse
opensuse / opensuse
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet
puppet / puppet enterprise
puppetlabs / puppet
puppetlabs / puppet
puppetlabs / puppet
suse / linux enterprise desktop
suse / linux enterprise desktop
suse / linux enterprise server
suse / linux enterprise server
suse / linux enterprise server

Certified products that may be affected

2 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

SUSE Linux Enterprise Server 11 Service Pack 2 on IBM System z - SUSE Linux Products Gmbh - Common Criteria BSI-DSZ-CC-0852-2013 - archived
SUSE Linux Enterprise Server 11 Service Pack 2 including KVM virtualization - SUSE Linux Products Gmbh - Common Criteria BSI-DSZ-CC-0787-2013 - archived

References

http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00006.html(Third Party Advisory)
http://lists.opensuse.org/opensuse-updates/2012-07/msg00036.html(Third Party Advisory)
http://puppetlabs.com/security/cve/cve-2012-3867/(Vendor Advisory)
http://secunia.com/advisories/50014
http://www.debian.org/security/2012/dsa-2511(Third Party Advisory)
http://www.ubuntu.com/usn/USN-1506-1(Third Party Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=839158(Issue Tracking)
https://github.com/puppetlabs/puppet/commit/dfedaa5fa841ccf335245a748b347b7c7c236640(Exploit, Issue Tracking, Patch)
https://github.com/puppetlabs/puppet/commit/f3419620b42080dad3b0be14470b20a972f13c50(Exploit, Issue Tracking, Patch)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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