CVE-2021-2471

high-risk
Published 2021-10-20

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).

Do I need to act?

!
63.8% chance of exploitation in next 30 days
EPSS score — higher than 36% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.9/10 Medium
NETWORK / HIGH complexity

Affected Products (6)

Mysql Connectors

Affected Vendors

Oracle Quarkus

References (4)

Vendor Advisory https://www.oracle.com/security-alerts/cpuapr2022.html
Vendor Advisory https://www.oracle.com/security-alerts/cpuoct2021.html
Vendor Advisory https://www.oracle.com/security-alerts/cpuapr2022.html
Vendor Advisory https://www.oracle.com/security-alerts/cpuoct2021.html
50
/ 100
high-risk
Severity 18/34 · Moderate
Exploitability 19/34 · Moderate
Exposure 13/34 · Low