Is CVE-2012-3867 in the CISA KEV catalog?

No. CVE-2012-3867 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2012-3867?

CVE-2012-3867 has a CVSS v2 base score of 4.3 (MEDIUM).

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

CVE-2012-3867 has an EPSS score of 2.45% (82th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2012-3867?

Upgrade puppet on debian 11 to 2.7.18-1 or later.

CVE & CISA-KEV Catalog

CVE-2012-3867

MEDIUMEPSS 82th pctl

4.3

CVSS v2

NVD

Description

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.

CWE-264Permissions, Privileges, and Access Controls

How to fix

Remediation Available

puppetDebian

Fixed in:2.7.18-1CVE-2012-3867

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

2.45%probability of exploitation in 30 days

82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Patch2

Vendor Advisory1

puppetlabs.com

Third-Party Advisory4

Issue Tracking1

bugzilla.redhat.com

Other references1

secunia.com

Related Vulnerabilities

Other CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2012-1456	Medium	4.3	100%	-	-
CVE-2012-1459	Medium	4.3	100%	-	Fix
CVE-2012-1446	Medium	4.3	100%	-	-
CVE-2012-1443	Medium	4.3	100%	-	-
CVE-2012-1442	Medium	4.3	99%	-	-
CVE-2012-1457	Medium	4.3	98%	-	Fix

Embed a live status badge for CVE-2012-3867

Markdown

[![CVE-2012-3867](https://tridentstack.com/cve/badge/CVE-2012-3867.svg)](https://tridentstack.com/cve/CVE-2012-3867)

HTML

<a href="https://tridentstack.com/cve/CVE-2012-3867"><img src="https://tridentstack.com/cve/badge/CVE-2012-3867.svg" alt="CVE-2012-3867"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.