How severe is CVE-2021-36774?

CVE-2021-36774 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-36774 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36774?

CVE-2021-36774 affects Apache Kylin. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-36774?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-36774 published?

CVE-2021-36774 was published on 2022-01-06 and last updated on 2026-06-17.

CVE-2021-36774

CVE-2021-36774 is a medium-severity vulnerability in Apache Kylin with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 2% (78th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Apache Kylin
Published: 2022-01-06
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-36774?: 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.
How severe is CVE-2021-36774?: CVE-2021-36774 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-36774 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36774?: CVE-2021-36774 affects Apache Kylin. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-36774?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-36774 published?: CVE-2021-36774 was published on 2022-01-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:kylin:*:*:*:*:*:*:*:*

More vulnerabilities in Apache Kylin

CVE-2022-44621 — Critical (CVSS 9.8): Diagnosis Controller miss parameter validation, so user may attacked by command injection via HTTP Request.
CVE-2022-24697 — Critical (CVSS 9.8): Kylin's cube designer function has a command injection vulnerability when overwriting system parameters in the…
CVE-2021-45456 — Critical (CVSS 9.8): Apache kylin checks the legitimacy of the project before executing some commands with the project name passed in by the…
CVE-2021-31522 — Critical (CVSS 9.8): Kylin can receive user input and load any class through Class.forName(...). This issue affects Apache Kylin 2 version…
CVE-2020-13926 — Critical (CVSS 9.8): Kylin concatenates and executes a Hive SQL in Hive CLI or beeline when building a new segment; some part of the HQL is…
CVE-2020-13925 — Critical (CVSS 9.8): Similar to CVE-2020-1956, Kylin has one more restful API which concatenates the API inputs into OS commands and then…

All CVEs affecting Apache Kylin →