CVE-2021-27017

6.6 mediumEPSS 0.6%

Medium (6.6). EPSS 0.6% chance of exploitation in the next 30 days.

Utilization of a module presented a security risk by allowing the deserialization of untrusted/user supplied data. This is resolved in the Puppet Agent 7.4.0 release.

Severity

CVSS 3.1

6.6 medium

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

EPSS: 0.6% chance of exploitation in the next 30 days; higher than 46% of CVEs (scores of 2026-10-31)
CWE: CWE-502
Published: 2025-02-07
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://www.puppet.com/security/cve/cve-2021-27017-deserialization-untrusted-data

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