Is CVE-2012-5158 being actively exploited?

CVE-2012-5158 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-5158?

CVE-2012-5158 has a CVSS 2.0 base score of 4.0 (MEDIUM).

CVE-2012-5158

MEDIUM · CVSS 4.0EPSS 0.8%EU EUVD

Puppet Enterprise (PE) before 2.6.1 does not properly invalidate sessions when the session secret has changed, which allows remote authenticated users to retain access via unspecified vectors.

Key facts

CVSS score: 4.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:S/C:N/I:P/A:N
Weakness (CWE): CWE-287
EPSS score: 0.8% (57th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2012-5081)
Published: March 14, 2014
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-5081 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

puppet / puppet enterprise
puppet / puppet enterprise
puppet / puppet enterprise
puppet / puppet enterprise
puppetlabs / puppet

References

http://puppetlabs.com/security/cve/cve-2012-5158(Vendor Advisory)

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

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