What is CVE-2021-27668?

CVE-2021-27668 is a medium-severity vulnerability in Hashicorp Vault, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2021-08-31.

How severe is CVE-2021-27668?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2021-27668 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Hashicorp Vault

CVE-2021-27668

HashiCorp Vault Enterprise 0.9.2 through 1.6.2 allowed the read of license metadata from DR secondaries without authentication. Fixed in 1.6.3.

Vulnerability class: Broken Authentication

EPSS: 0.010 (60.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Hashicorp Vault
N/a — versions n/a

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

cve@mitre.org (x_refsource_MISC, Vendor Advisory)
cve@mitre.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)

Frequently asked questions

What is CVE-2021-27668?: CVE-2021-27668 is a medium-severity vulnerability in Hashicorp Vault, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2021-08-31.
How severe is CVE-2021-27668?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2021-27668 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.