CVE-2021-2471

libmysqlclient21: Vulnerability in the MySQL Connectors product of Oracle MySQL (component:Connector/J)

CVE-2021-2471 is fixed in 11 products on 1 platform, first by libmysqlclient21 8.0.27-0ubuntu0.20.04.1, released January 19, 2022. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0749
94th percentile

Vulnerability in the MySQL Connectors product of Oracle MySQL (component:Connector/J). Supported versions that are affected are 8.0.26 and prior.Difficult to exploit vulnerability allows high privileged attacker withnetwork access via multiple protocols to compromise MySQL Connectors.Successful attacks of this vulnerability can result in unauthorized accessto critical data or complete access to all MySQL Connectors accessible dataand unauthorized ability to cause a hang or frequently repeatable crash(complete DOS) of MySQL Connectors. CVSS 3.1 Base Score 5.9(Confidentiality and Availability impacts). CVSS Vector:(CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H).

Where it's fixed

ProductFixed inFixReleased
Linux
libmysqlclient21 · Ubuntu 20.04 LTS (focal) 8.0.27-0ubuntu0.20.04.1 libmysqlclient21 8.0.27-0ubuntu0.20.04.1 Jan 19, 2022
libmysqlclient21 · Ubuntu 22.04.1 LTS (jammy) 8.0.27-0ubuntu0.21.10.1 libmysqlclient21 8.0.27-0ubuntu0.21.10.1 Jan 19, 2022
libmysqlclient21 · Ubuntu 24.10 (oracular) 8.0.27-0ubuntu0.21.10.1 libmysqlclient21 8.0.27-0ubuntu0.21.10.1 Jan 16, 2026
mysql-client · Ubuntu 20.04 LTS (focal) 8.0.27-0ubuntu0.20.04.1 mysql-client 8.0.27-0ubuntu0.20.04.1 Jan 19, 2022
mysql-client · Ubuntu 22.04.1 LTS (jammy) 8.0.27-0ubuntu0.21.10.1 mysql-client 8.0.27-0ubuntu0.21.10.1 Jan 19, 2022
mysql-client · Ubuntu 24.10 (oracular) 8.0.27-0ubuntu0.21.10.1 mysql-client 8.0.27-0ubuntu0.21.10.1 Jan 16, 2026
mysql-client-8.0 · Ubuntu 20.04 LTS (focal) 8.0.27-0ubuntu0.20.04.1 mysql-client-8.0 8.0.27-0ubuntu0.20.04.1 Jan 19, 2022
mysql-client-8.0 · Ubuntu 22.04.1 LTS (jammy) 8.0.27-0ubuntu0.21.10.1 mysql-client-8.0 8.0.27-0ubuntu0.21.10.1 Jan 19, 2022
mysql-client-8.0 · Ubuntu 24.10 (oracular) 8.0.27-0ubuntu0.21.10.1 mysql-client-8.0 8.0.27-0ubuntu0.21.10.1 Jan 16, 2026
mysql-client-core-8.0 · Ubuntu 20.04 LTS (focal) 8.0.27-0ubuntu0.20.04.1 mysql-client-core-8.0 8.0.27-0ubuntu0.20.04.1 Jan 19, 2022
mysql-client-core-8.0 · Ubuntu 22.04.1 LTS (jammy) 8.0.27-0ubuntu0.21.10.1 mysql-client-core-8.0 8.0.27-0ubuntu0.21.10.1 Jan 19, 2022
mysql-client-core-8.0 · Ubuntu 24.10 (oracular) 8.0.27-0ubuntu0.21.10.1 mysql-client-core-8.0 8.0.27-0ubuntu0.21.10.1 Jan 16, 2026
mysql-router · Ubuntu 20.04 LTS (focal) 8.0.27-0ubuntu0.20.04.1 mysql-router 8.0.27-0ubuntu0.20.04.1 Jan 19, 2022
mysql-router · Ubuntu 22.04.1 LTS (jammy) 8.0.27-0ubuntu0.21.10.1 mysql-router 8.0.27-0ubuntu0.21.10.1 Jan 19, 2022
mysql-router · Ubuntu 24.10 (oracular) 8.0.27-0ubuntu0.21.10.1 mysql-router 8.0.27-0ubuntu0.21.10.1 Jan 16, 2026
mysql-server · Ubuntu 20.04 LTS (focal) 8.0.27-0ubuntu0.20.04.1 mysql-server 8.0.27-0ubuntu0.20.04.1 Jan 19, 2022
mysql-server · Ubuntu 22.04.1 LTS (jammy) 8.0.27-0ubuntu0.21.10.1 mysql-server 8.0.27-0ubuntu0.21.10.1 Jan 19, 2022
mysql-server · Ubuntu 24.10 (oracular) 8.0.27-0ubuntu0.21.10.1 mysql-server 8.0.27-0ubuntu0.21.10.1 Jan 16, 2026
mysql-server-8.0 · Ubuntu 20.04 LTS (focal) 8.0.27-0ubuntu0.20.04.1 mysql-server-8.0 8.0.27-0ubuntu0.20.04.1 Jan 19, 2022
mysql-server-8.0 · Ubuntu 22.04.1 LTS (jammy) 8.0.27-0ubuntu0.21.10.1 mysql-server-8.0 8.0.27-0ubuntu0.21.10.1 Jan 19, 2022
mysql-server-8.0 · Ubuntu 24.10 (oracular) 8.0.27-0ubuntu0.21.10.1 mysql-server-8.0 8.0.27-0ubuntu0.21.10.1 Jan 16, 2026
mysql-server-core-8.0 · Ubuntu 20.04 LTS (focal) 8.0.27-0ubuntu0.20.04.1 mysql-server-core-8.0 8.0.27-0ubuntu0.20.04.1 Jan 19, 2022
mysql-server-core-8.0 · Ubuntu 22.04.1 LTS (jammy) 8.0.27-0ubuntu0.21.10.1 mysql-server-core-8.0 8.0.27-0ubuntu0.21.10.1 Jan 19, 2022
mysql-server-core-8.0 · Ubuntu 24.10 (oracular) 8.0.27-0ubuntu0.21.10.1 mysql-server-core-8.0 8.0.27-0ubuntu0.21.10.1 Jan 16, 2026
mysql-source-8.0 · Ubuntu 20.04 LTS (focal) 8.0.27-0ubuntu0.20.04.1 mysql-source-8.0 8.0.27-0ubuntu0.20.04.1 Jan 19, 2022
mysql-source-8.0 · Ubuntu 22.04.1 LTS (jammy) 8.0.27-0ubuntu0.21.10.1 mysql-source-8.0 8.0.27-0ubuntu0.21.10.1 Jan 19, 2022
mysql-source-8.0 · Ubuntu 24.10 (oracular) 8.0.27-0ubuntu0.21.10.1 mysql-source-8.0 8.0.27-0ubuntu0.21.10.1 Jan 16, 2026
mysql-testsuite · Ubuntu 20.04 LTS (focal) 8.0.27-0ubuntu0.20.04.1 mysql-testsuite 8.0.27-0ubuntu0.20.04.1 Jan 19, 2022
mysql-testsuite · Ubuntu 22.04.1 LTS (jammy) 8.0.27-0ubuntu0.21.10.1 mysql-testsuite 8.0.27-0ubuntu0.21.10.1 Jan 19, 2022
mysql-testsuite · Ubuntu 24.10 (oracular) 8.0.27-0ubuntu0.21.10.1 mysql-testsuite 8.0.27-0ubuntu0.21.10.1 Jan 16, 2026
mysql-testsuite-8.0 · Ubuntu 20.04 LTS (focal) 8.0.27-0ubuntu0.20.04.1 mysql-testsuite-8.0 8.0.27-0ubuntu0.20.04.1 Jan 19, 2022
mysql-testsuite-8.0 · Ubuntu 22.04.1 LTS (jammy) 8.0.27-0ubuntu0.21.10.1 mysql-testsuite-8.0 8.0.27-0ubuntu0.21.10.1 Jan 19, 2022
mysql-testsuite-8.0 · Ubuntu 24.10 (oracular) 8.0.27-0ubuntu0.21.10.1 mysql-testsuite-8.0 8.0.27-0ubuntu0.21.10.1 Jan 16, 2026

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