CVE-2021-36774

Name: CVE-2021-36774
Creator: NVD / NIST
Published: 2022-01-06T13:15:08.08+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.95%

Last modified Jun 17, 2026

CVE-2021-36774 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Apache Kylin allows users to read data from other database systems using JDBC. The MySQL JDBC driver supports certain properties, which, if left unmitigated, can allow an attacker to execute arbitrary code from a hacker-controlled malicious MySQL server within Kylin server processes. EPSS estimates a 1.95% chance of exploitation in the next 30 days.

Description

Apache Kylin allows users to read data from other database systems using JDBC. The MySQL JDBC driver supports certain properties, which, if left unmitigated, can allow an attacker to execute arbitrary code from a hacker-controlled malicious MySQL server within Kylin server processes. This issue affects Apache Kylin 2 version 2.6.6 and prior versions; Apache Kylin 3 version 3.1.2 and prior versions.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.95%

77.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Apache	Kylin	>= 2.0.0, <= 2.6.6
Apache	Kylin	>= 3.0.0, <= 3.1.2

References

http://www.openwall.com/lists/oss-security/2022/01/06/5Mailing List, Third Party Advisory
https://lists.apache.org/thread/lchpcvoolc6w8zc6vo1wstk8zbfqv2owMailing List, Vendor Advisory
http://www.openwall.com/lists/oss-security/2022/01/06/5Mailing List, Third Party Advisory
https://lists.apache.org/thread/lchpcvoolc6w8zc6vo1wstk8zbfqv2owMailing List, Vendor Advisory

Timeline

Published: Jan 6, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-36774?

How severe is CVE-2021-36774?

CVE-2021-36774 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.95% probability of exploitation in the next 30 days.

How do I fix CVE-2021-36774?

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-2021-36774?

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

Scan your code now

Source: NVD / NIST