CVE-2021-27018

HIGH

7.5

CVSS Score

Published: August 30, 2021 at 05:56 PM UTC

Updated: June 17, 2026 at 03:44 AM UTC

1 product affected across 1 vendorRemediate

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Severity

HIGH7.5

Exploit prediction

EPSS 0.5%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediate · Puppet

95%

v < 2.0v < 2.0.1

Affected range stops below 2.0, so it looks safe — our inference, not a vendor statement

Affected range stops below 2.0.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

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

References (1)

x_refsource_MISCVendor Advisory

Source: [email protected]

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

CVSS

7.5HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: NONE
Integrity: HIGH
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-295

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