Skip to content
Fencer Intel
medium 5.9

CVE-2021-2471 json

Incorrect Authorization in MySQL Connector Java

published 5y ago modified 4mo ago also GHSA-w6f2-8wx4-47r5 , EUVD-2022-5511

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
7.5%
EPSS 7.5% chance of exploitation in 30 days, percentile 94%
public exploits
0
none known

Summary

Vulnerability in the MySQL Connectors product of Oracle MySQL (component: Connector/J). Supported versions that are affected are 8.0.26 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).

Patch / fix

  • maven mysql:mysql-connector-java 8.0.27
  • quarkus quarkus 2.2.4, 2.6.0
  • mysql-8.0 Ubuntu 20.04 LTS 8.0.27-0ubuntu0.20.04.1
  • mysql-8.0 Ubuntu 22.04 LTS 8.0.27-0ubuntu0.21.10.1

ubuntu advisories UBUNTU-CVE-2021-2471

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • mysql-connector-java SLE Software Development Kit 12 SP5, OpenStack Cloud Crowbar 9, OpenStack Cloud Crowbar 8 +3 more 8.0.25-5.13.1

suse advisories SUSE-SU-2022:1142-1

  • mysql-connector-java openSUSE Tumbleweed 8.0.28-1.1
  • mysql-connector-java openSUSE Leap 15.3 5.1.47-3.6.1

opensuse advisories openSUSE-SU-2024:11883-1openSUSE-SU-2022:0658-1

Is CVE-2021-2471 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

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-2021-2471 updated cvss 7.4

mysql-connector-java: unauthorized access to critical

  • Red Hat build of Debezium 1 mysql-connector-java Red Hat build of Quarkus mysql-connector-java
    affected: no fix available
  • Red Hat Enterprise Linux 6 mysql-connector-java Red Hat Enterprise Linux 7 mysql-connector-java
    affected: no fix planned “Out of support scope”
  • Red Hat Integration Camel Quarkus 1 mysql-connector-java
    affected: no fix available
  • Red Hat JBoss Data Virtualization 6 mysql-connector-java Red Hat JBoss Enterprise Application Platform 6 mysql-connector-java
    affected: no fix planned “Out of support scope”
  • Red Hat JBoss Enterprise Application Platform 7 mysql-connector-java
    affected: no fix planned “Will not fix”
  • Red Hat JBoss Enterprise Application Platform Expansion Pack mysql-connector-java Red Hat JBoss Fuse 6 mysql-connector-java
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Container Platform 4 openshift4/ose-metering-presto
    affected: no fix planned “Will not fix”
  • Red Hat Satellite 6 candlepin, candlepin-selinux
    affected: no fix available “Fix deferred”
show 5 more

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
2y ago

Exploit prediction

7.49% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H
NVD 2.0 7.9 AV:N/AC:M/Au:S/C:C/I:N/A:C
GitHub 3.1 5.9 CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven mysql:mysql-connector-java
>=8.0.0, <8.0.27
8.0.27

Affected products

  • Oracle Corporation MySQL Connectors

Classification

Weakness

References

Sources

Fencer Intel 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.