CVE-2021-27025

MEDIUMNVD 6.56.5—

6.5

A flaw was discovered in Puppet Agent where the agent may silently ignore Augeas settings or may be vulnerable to a Denial of Service condition prior to the first 'pluginsync'.

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 67.4%
KEV: Not listed

Published

November 18, 2021

Last Modified

November 21, 2024

References (4)

security@puppethttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62SELE7EKVKZL4GABFMVYMIIUZ7FPEF7/
security@puppethttps://puppet.com/security/cve/cve-2021-27025
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62SELE7EKVKZL4GABFMVYMIIUZ7FPEF7/
af854a3a-2127-422b-91ae-364da2661108https://puppet.com/security/cve/cve-2021-27025

Patch Availability(3)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	puppet-0:5.5.10-14.el8ost	2022-12-07	redhat
redhat	puppet-agent-0:6.26.0-1.el8sat	2022-06-01	redhat
redhat	puppetserver-0:6.18.0-1.el7sat	2022-05-04	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

RubyGems(1)

Package	Vulnerable range	Fixed in	Dependents
puppet	0.13.0 ... 6.9.0 (244 versions)	6.25.1	—

All Vendor Advisories

(5)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 7× in last 7d / 7× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:23 UTCEG score recompute
2026-05-26 07:23 UTCVendor advisory
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2021-27025?

CVE-2021-27025 is a medium vulnerability published on November 18, 2021. A flaw was discovered in Puppet Agent where the agent may silently ignore Augeas settings or may be vulnerable to a Denial of Service condition prior to the first 'pluginsync'.

When was CVE-2021-27025 disclosed?

CVE-2021-27025 was first published in the National Vulnerability Database on November 18, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-27025 actively exploited?

CVE-2021-27025 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 67.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-27025?

CVE-2021-27025 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2021-27025?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-27025, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-27025

Explore →

Is Your Infrastructure Affected by CVE-2021-27025?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2021-27025

📅 Published

🔄 Last Modified

🔗 References (4)