CVE-2021-27925

Name: CVE-2021-27925
Creator: NVD / NIST
Published: 2021-05-19T19:15:08.387+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.4/10EPSS 0.53%

Last modified Jun 17, 2026

CVE-2021-27925 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. An issue was discovered in Couchbase Server 6.5.x and 6.6.x through 6.6.1. When using the View Engine and Auditing is enabled, a crash condition can (depending on a race condition) cause an internal user with administrator privileges, @ns_server, to have its credentials leaked in cleartext in the ns_server.info.log file.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.

Description

An issue was discovered in Couchbase Server 6.5.x and 6.6.x through 6.6.1. When using the View Engine and Auditing is enabled, a crash condition can (depending on a race condition) cause an internal user with administrator privileges, @ns_server, to have its credentials leaked in cleartext in the ns_server.info.log file.

Metrics

CVSS 3.1

4.4/10

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

EPSS Probability

0.53%

40.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-362

Affected Software

Vendor	Product	Versions
Couchbase	Couchbase Server	>= 6.5.0, < 6.6.2

References

https://www.couchbase.com/downloadsProduct, Vendor Advisory
https://www.couchbase.com/resources/security#SecurityAlertsVendor Advisory
https://www.couchbase.com/downloadsProduct, Vendor Advisory
https://www.couchbase.com/resources/security#SecurityAlertsVendor Advisory

Timeline

Published: May 19, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-27925?

How severe is CVE-2021-27925?

CVE-2021-27925 has a CVSS score of 4.4/10 (MEDIUM severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.

How do I fix CVE-2021-27925?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-27925?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST