CVE-2021-2471

Description

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 with network access via multiple protocols to compromise MySQL Connectors. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Connectors accessible data and 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).

How to fix CVE-2021-2471

To remediate CVE-2021-2471, upgrade the affected package to a fixed version below.

• —upgrade to 8.0.27 or later

Is CVE-2021-2471 being exploited?

Likely — EPSS is 63.8%, placing CVE-2021-2471 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.

Affected packages (1)

• >= 8.0.0, < 8.0.27

CVSS scores

References (3)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2021-2471
• WEBwww.oracle.com/security-alerts/cpuapr2022.html
• WEBwww.oracle.com/security-alerts/cpuoct2021.html