← Vulnerability feed

Vulnerability record · CVE-2021-2471 · published 20 October 2021

CVE-2021-2471: Oracle communications cloud native core console vulnerability

Oracle · Communications Cloud Native Core Console

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).

5.9 CVSS 3.1 Medium EPSS 7.5% · top 5.7%
5.9CVSS 3.1 base score, v2 7.9
7.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
6Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

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).

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

Affected products

6 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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 Vendor Advisory

Track CVE-2021-2471 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2022-22947Spring Cloud Gateway Actuator endpoint code injectionSpring Cloud Gateway versions before 3.1.1+ and 3.0.7+ allow code injection when the Gateway Actuator endpoint is enabled, exposed and unsecured. A c…KEVEPSS 98%analysed9.8CVE-2022-22963Spring Cloud Function routing expression SpEL injection RCESpring Cloud Function versions 3.1.6, 3.2.2 and older unsupported versions allow a user to supply a crafted SpEL expression as a routing-expression w…KEVEPSS 100%analysed9.8CVE-2022-22965Spring Framework data binding remote code execution (Spring4Shell)Spring MVC and Spring WebFlux applications on JDK 9+ can be exploited through data binding to achieve remote code execution. The known exploit path r…KEVEPSS 100%analysed8.5CVE-2021-39144XStream deserialization allows remote command executionXStream, a Java library that serializes objects to and from XML, can execute host commands when a remote attacker with sufficient rights manipulates …KEVEPSS 98%analysed9.8CVE-2021-3773Linux kernel information exposure vulnerabilityA flaw in netfilter could allow a network-connected attacker to infer openvpn connection endpoint information for further use in traditional network …EPSS 5.3%9.8CVE-2022-23221H2 Console JDBC URL argument injection enables remote code executionH2 Console before 2.1.210 accepts a jdbc:h2:mem JDBC URL containing the IGNORE_UNKNOWN_SETTINGS=TRUE;FORBID_CREATION=FALSE;INIT=RUNSCRIPT substring, …EPSS 65%analysed9.8CVE-2022-23219Gnu glibc classic buffer overflow vulnerabilityThe deprecated compatibility function clnt_create in the sunrpc module of the GNU C Library (aka glibc) through 2.34 copies its hostname argument on …EPSS 4.3%9.8CVE-2021-42392H2 database JNDI lookup flaw allows unauthenticated remote code executionThe org.h2.util.JdbcUtils.getConnection method in the H2 database accepts a driver class name and database URL from the caller. An attacker can suppl…EPSS 83%analysed

Source: NIST National Vulnerability Database (record CVE-2021-2471), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.