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CVE Record

CVE-2022-21531: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer).

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.29 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).

MediumCVSS 4.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2022-21531 is a denial-of-service issue in Oracle MySQL Server. A highly privileged attacker with network access could cause MySQL to hang or crash repeatedly. The cited CVSS data shows availability impact only, with no stated confidentiality or integrity impact.

Executive priority

Treat as a moderate-priority availability risk. Prioritize remediation for production databases, systems with strict uptime requirements, and environments where many privileged users or services can reach MySQL over the network.

Technical view

The vulnerability affects MySQL Server 8.0.29 and prior, specifically the Server Optimizer component. It is network-accessible, low-complexity, requires high privileges, and needs no user interaction. Successful exploitation can cause a complete denial of service through hangs or repeatable crashes.

Likely exposure

Exposure is most relevant where MySQL Server 8.0.29 or earlier is reachable over database network protocols by privileged users or services. Downstream package users should also check Oracle, Fedora, and NetApp advisories for applicability.

Exploitation context

The source bundle does not report active exploitation, and KEV status is false. Exploitation requires high privileges, reducing broad internet risk, but the availability impact can still matter for critical databases or shared administrative environments.

Researcher notes

No CWE is provided in the source bundle. The issue is scoped to MySQL Server Optimizer and availability impact. Sources do not provide exploit details, proof of exploitation, or a specific fixed version beyond vendor advisory references.

Mitigation direction

  • Apply Oracle July 2022 CPU guidance or later vendor-supported MySQL updates.
  • Update Fedora or downstream packages where those advisories apply.
  • Review NetApp advisory applicability for environments using affected bundled components.
  • Limit privileged MySQL access to trusted administrators and service accounts.
  • Restrict network access to MySQL management and database protocols.

Validation and detection

  • Inventory MySQL Server instances and record exact versions.
  • Flag MySQL Server 8.0.29 and prior for remediation review.
  • Confirm installed packages align with Oracle or distribution vendor advisories.
  • Review privileged database accounts with network access.
  • Monitor database availability logs for unexplained hangs or repeated crashes.
Prepared
Confidence
high
Sources
6

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

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CVE-2022-21531 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.9 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
5Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4.9CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H1.23.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

4.9Medium
CVSS 3.1 vector shape for CVE-2022-21531Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Oracle CorporationMySQL Server8.0.29 and priorListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.