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Fencer Vulns
medium 5.3

CVE-2023-21971 json

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

published 2023-04-18 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-26136

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). Supported versions that are affected are 8.0.32 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Connectors as well as unauthorized update, insert or delete access to some of MySQL Connectors accessible data and unauthorized read access to a subset of MySQL Connectors accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:H).

Patch / fix

  • mysql-connector-java openSUSE Leap 15.5, openSUSE Leap 15.4 8.0.33-150200.3.18.1
  • mysql-connector-java openSUSE Leap 15.4 8.0.32-150200.3.15.1

suse advisories SUSE-SU-2023:2979-1SUSE-SU-2023:2241-1

  • mysql-connector-java openSUSE Tumbleweed 8.0.33-2.1

opensuse advisories openSUSE-SU-2024:12927-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-21971 updated cvss 5.3

mysql-connector-java: Connector/J unspecified vulnerability (CPU April 2023)

  • Red Hat Decision Manager 7 mysql-connector-java Red Hat Enterprise Linux 6 mysql-connector-java Red Hat Enterprise Linux 7 mysql-connector-java Red Hat Fuse 7 mysql-connector-java Red Hat JBoss Data Grid 7 mysql-connector-java Red Hat JBoss Data Virtualization 6 mysql-connector-java
    +4 more products
    Red Hat JBoss Enterprise Application Platform 6 mysql-connector-java Red Hat JBoss Fuse 6 mysql-connector-java Red Hat JBoss Fuse Service Works 6 mysql-connector-java Red Hat Process Automation 7 mysql-connector-java
    affected: no fix planned “Out of support scope”
  • Red Hat A-MQ Clients 2 mysql-connector-java Red Hat build of Debezium 1 mysql-connector-java Red Hat build of Quarkus mysql-connector-java Red Hat Data Grid 8 mysql-connector-java Red Hat Integration Camel K 1 mysql-connector-java Red Hat JBoss Enterprise Application Platform 7 mysql-connector-java
    +4 more products
    Red Hat JBoss Enterprise Application Platform 8 mysql-connector-java Red Hat JBoss Enterprise Application Platform Expansion Pack mysql-connector-java Red Hat OpenShift Application Runtimes mysql-connector-java Red Hat Single Sign-On 7 mysql-connector-java
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

1.48% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:H

Affected products

  • Oracle Corporation MySQL Connectors

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.