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CVE Record

CVE-2022-21529: 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-2022-21529 is a MySQL Server denial-of-service flaw in the Optimizer component. A highly privileged attacker who can reach MySQL over the network could make the server hang or repeatedly crash. The main business impact is database outage, not data theft or data modification.

Executive priority

Treat this as a moderate availability risk. Prioritize patching production MySQL systems that support critical services, especially where privileged access is broad or remotely reachable. It is less urgent than unauthenticated code execution, but outages can still be material.

Technical view

Oracle reports affected MySQL Server versions as 8.0.29 and prior. The CVSS 3.1 vector is AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H, meaning network-reachable, low complexity, high privileges required, no user interaction, and availability-only impact.

Likely exposure

Exposure is likely limited to MySQL Server 8.0.29 or earlier where high-privileged database users can connect over network protocols. Internet exposure is less important than who has powerful authenticated access to the database service.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The vulnerability is described as easily exploitable after high privileges are obtained, so it matters most in insider, compromised admin, or overprivileged application-account scenarios.

Researcher notes

The public record identifies the affected component and impact, but does not provide CWE details, root-cause mechanics, or exploit evidence in the supplied bundle. Validation should focus on version state, privilege model, network reachability, and crash telemetry.

Mitigation direction

  • Apply Oracle's July 2022 Critical Patch Update or later supported MySQL updates.
  • Update downstream vendor packages, such as Fedora builds, where MySQL is distribution-managed.
  • Review NetApp guidance if MySQL is present in NetApp-supported environments.
  • Restrict network access to MySQL to trusted hosts and required administrators only.
  • Reduce unnecessary high-privilege MySQL accounts and rotate credentials where exposure is suspected.

Validation and detection

  • Inventory all MySQL Server instances and confirm versions are newer than 8.0.29.
  • Check whether high-privileged accounts can connect remotely to each MySQL service.
  • Review database logs and service monitoring for unexplained hangs or repeat crashes.
  • Confirm vendor package advisories are applied for OS-managed MySQL installations.
  • Verify compensating network controls limit MySQL access to approved sources.
Prepared
Confidence
high
Sources
5

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

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CVE-2022-21529 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
4Source 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-2022-21529Attack 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.