CVE-2021-2006: Vulnerability in the MySQL Client product of Oracle MySQL (component: C API). Supported versions that are affected are 8.0.19 and prior. Difficult to ...

Description

Vulnerability in the MySQL Client product of Oracle MySQL (component: C API). Supported versions that are affected are 8.0.19 and prior. Difficult to exploit vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Client. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Client. CVSS 3.1 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H).

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

1.82%

76.0th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Oracle	Mysql	>= 8.0.0, <= 8.0.19
Fedoraproject	Fedora	32
Fedoraproject	Fedora	33
Netapp	Active Iq Unified Manager	All versions
Netapp	Oncommand Insight	All versions
Netapp	Oncommand Workflow Automation	All versions

References

Timeline

Published: Jan 20, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-2006?

Vulnerability in the MySQL Client product of Oracle MySQL (component: C API). Supported versions that are affected are 8.0.19 and prior. Difficult to exploit vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Client. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Client. CVSS 3.1 Base Score 5.3 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H).

How severe is CVE-2021-2006?

CVE-2021-2006 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.82% probability of exploitation in the next 30 days.

How do I fix CVE-2021-2006?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.