CVE-2022-21253

FAUCET Score

CVE-2022-21253 is a denial-of-service vulnerability affecting Oracle MySQL Server versions 8.0.27 and prior, specifically within the Optimizer component. A highly privileged attacker with network access can exploit this vulnerability to cause a complete and repeatable crash of the MySQL Server. With a CVSS v3.1 score of 4.9 (Medium), it has low attack complexity but requires high privileges, impacting only availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		>= 8.0.0, <= 8.0.27CPE matchmatch criteria	cpe:2.3:a:oracle:mysql::::::::
		Range not provided by sourceCPE matchmatch criteria	cpe:2.3:a:netapp:active_iq_unified_manager:-:::::vsphere::
		Range not provided by sourceCPE matchmatch criteria	cpe:2.3:a:netapp:active_iq_unified_manager:-:::::windows::
		Range not provided by sourceCPE matchmatch criteria	cpe:2.3:a:netapp:oncommand_insight:-:::::::*
		Range not provided by sourceCPE matchmatch criteria	cpe:2.3:a:netapp:oncommand_workflow_automation:-:::::::*

CVSS Data

CVSS version used by this source: 3.1

4.9MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

Exploitability Score

1.2

Impact Score

3.6

CvssVersion

3.1

Exploit Intelligence

EPSS Score

1.98%

Probability of exploitation in next 30 days

EPSS Percentile

78.4%

Percentile rank of EPSS score among Peer Group

As of 2026-07-28

Model: v2026.06.15

This CVE's current EPSS score of 0.0198 is in the 86th percentile among its peer group of 3,566 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

microsoftpatch availablevia msrc

Product: 18806-16823Fixed in: 8.0.28-1

microsoftpatch availablevia msrc

Product: cbl2 mysql 8.0.28-1 on CBL Mariner 2.0Fixed in: 8.0.28-1

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: mysql:8.0-8060020220830124159.ad008a3a

View patch

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-mysql80-mysql-0:8.0.30-1.el7

View patch

oraclevendor investigatingvia nvd_reference

View patch

Vendor Advisories (2)

redhatCVE-2022-21253Moderate

mysql: Server: Optimizer unspecified vulnerability (CPU Jan 2022)

Jan 18, 2022

microsoft2022-Jan/CVE-2022-21253Moderate

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.27 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).

Jan 11, 2022

References

lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/D2XBX2PNTBLJNK5G7EP7LIDPFTPDIHPW

lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/U6OB7IPXBSJRAGCA4P47EVGC76VS2DS4

security.netapp.com / advisory/ntap-20220121-0008

Third Party Advisory

oracle.com / security-alerts/cpujan2022.html

Vendor Advisory