CVE-2021-39231

Name: CVE-2021-39231
Creator: NVD / NIST
Published: 2021-11-19T10:15:08.11+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 2.30%

Last modified Jun 17, 2026

CVE-2021-39231 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. In Apache Ozone versions prior to 1.2.0, Various internal server-to-server RPC endpoints are available for connections, making it possible for an attacker to download raw data from Datanode and Ozone manager and modify Ratis replication configuration.. EPSS estimates a 2.30% chance of exploitation in the next 30 days.

Description

In Apache Ozone versions prior to 1.2.0, Various internal server-to-server RPC endpoints are available for connections, making it possible for an attacker to download raw data from Datanode and Ozone manager and modify Ratis replication configuration.

Metrics

CVSS 3.1

9.1/10

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

EPSS Probability

2.30%

81.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Apache	Ozone	< 1.2.0

References

http://www.openwall.com/lists/oss-security/2021/11/19/2Mailing List, Third Party Advisory
https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C110cd117-75ed-364b-cd38-3effd20f2183%40apache.org%3EMailing List, Mitigation, Vendor Advisory
http://www.openwall.com/lists/oss-security/2021/11/19/2Mailing List, Third Party Advisory
https://mail-archives.apache.org/mod_mbox/ozone-dev/202111.mbox/%3C110cd117-75ed-364b-cd38-3effd20f2183%40apache.org%3EMailing List, Mitigation, Vendor Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2021-39231?

How severe is CVE-2021-39231?

CVE-2021-39231 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 2.30% probability of exploitation in the next 30 days.

How do I fix CVE-2021-39231?

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-2021-39231?

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

Scan your code now

Source: NVD / NIST