CVE-2021-2166
4.9
MEDIUM
CVSS 3.1
EPSS 1.1%
Description
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DML). Supported versions that are affected are 5.7.33 and prior and 8.0.23 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
How to fix CVE-2021-2166
To remediate CVE-2021-2166, upgrade the affected package to a fixed version below.
- —upgrade to 10.3.29-r0 or later
- —upgrade to 10.2.38 or later
- —upgrade to 10.2.38 or later
- —upgrade to 10.2.38 or later
- —upgrade to 1:10.5.10-1 or later
Is CVE-2021-2166 being exploited?
Low — EPSS is 1.1%, meaning exploitation activity has not been observed at scale.
Affected packages (5)
- from 0, < 10.3.29-r0
- >= 10.2.0, < 10.2.38, >= 10.3.0, < 10.3.29, >= 10.4.0, < 10.4.19, >= 10.5.0, < 10.5.10
- >= 10.2.0, < 10.2.38, >= 10.3.0, < 10.3.29, >= 10.4.0, < 10.4.19, >= 10.5.0, < 10.5.10
- >= 10.2.0, < 10.2.38, >= 10.3.0, < 10.3.29, >= 10.4.0, < 10.4.19, >= 10.5.0, < 10.5.10
- from 0, < 1:10.5.10-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |