CVE-2021-27018

7.5 highEPSS 0.5%

High (7.5) in puppet remediate. EPSS 0.5% chance of exploitation in the next 30 days.

The mechanism which performs certificate validation was discovered to have a flaw that resulted in certificates signed by an internal certificate authority to not be properly validated. This issue only affects clients that are configured to utilize Tenable.sc as the vulnerability data source.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-31)
CWE: CWE-295
Published: 2021-08-30
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

puppet:remediate

References

https://puppet.com/security/cve/CVE-2021-27018
https://puppet.com/security/cve/CVE-2021-27018

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