CVE-2011-3872

lowpriority · track · 21EPSS 0.025 · 85 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

2.52% (85th) EPSS

CVSS 2.6 · low

Is it mine?

25 products

Check your exposure

Who says so?

2 sources

enisa_euvd · nvd

EPSS · scored 2026-10-27

Puppet 2.6.x before 2.6.12 and 2.7.x before 2.7.6, and Puppet Enterprise (PE) Users 1.0, 1.1, and 1.2 before 1.2.4, when signing an agent certificate, adds the Puppet master's certdnsnames values to the X.509 Subject Alternative Name field of the certificate, which allows remote attackers to spoof a Puppet master via a man-in-the-middle (MITM) attack against an agent that uses an alternate DNS name for the master, aka "AltNames Vulnerability."

cvss

Technical severity, 0–10. One row per scoring source.

2.6

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.02.6lowAV:N/AC:H/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 4.9 · impact 2.9

v2.02.3lowAV:N/AC:H/Au:N/C:N/I:P/A:N/E:POCsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimary

exploits (1)

Public proof-of-concept and weaponised exploit code.

puppetlabs-toy-chest/puppetlabs-cve20113872Puppet Module to help fix and migrate a Puppet deployment (CVE-2011-3872)PoC · poc_in_github

affected products (25)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
puppet puppet= 2.6.0nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet= 2.6.1nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet= 2.6.10nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet= 2.6.11nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet= 2.6.2nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet= 2.6.3nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet= 2.6.4nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet= 2.6.5nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet= 2.6.6nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet= 2.6.7nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet= 2.6.8nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet= 2.6.9nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet= 2.7.2nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet= 2.7.3nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet= 2.7.4nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet= 2.7.5nvdUScpe:2.3:a:puppet:puppet:*:*:*:*:*:*:*:*
puppet puppet enterprise= 1.2.0nvdUScpe:2.3:a:puppet:puppet_enterprise:*:*:*:*:*:*:*:*
puppet puppet enterprise= 1.2.1nvdUScpe:2.3:a:puppet:puppet_enterprise:*:*:*:*:*:*:*:*
puppet puppet enterprise= 1.2.2nvdUScpe:2.3:a:puppet:puppet_enterprise:*:*:*:*:*:*:*:*

showing 20 of 25

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd nvd NVD CVE.org MITRE

published 2011-10-27modified 2026-06-16

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+25188 more

references (22)

External citations — patches, advisories, analysis.

scry

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