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CVE Record

CVE-2021-2217: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Stored Procedure).

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

MediumCVSS 4.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This MySQL Server flaw can let a highly privileged network attacker crash or hang the database. The business impact is service outage, not data theft or tampering based on the provided sources. Exposure is limited by the need for high privileges, but critical databases still warrant prompt vendor-aligned patching.

Executive priority

Prioritize within normal vulnerability remediation cycles, faster for mission-critical databases with weak segmentation or many privileged users. The main risk is outage, not confirmed data compromise, and no active exploitation evidence is provided.

Technical view

CVE-2021-2217 affects Oracle MySQL Server 8.0.23 and prior in the Stored Procedure component. Oracle rates it CVSS 4.9 with network attack vector, low complexity, high privileges required, no user interaction, and high availability impact only. Successful exploitation can cause complete denial of service through hangs or repeatable crashes.

Likely exposure

Organizations running MySQL Server 8.0.23 or earlier are potentially exposed, especially where high-privilege database users can connect over network protocols. The source bundle does not identify affected CPEs or detailed NetApp product exposure.

Exploitation context

The provided sources do not show active exploitation, and the CVE is not listed as KEV. Exploitation requires a high-privileged attacker with network access, which reduces broad internet-driven risk but remains relevant for compromised admin accounts, insiders, or poorly segmented environments.

Researcher notes

No CWE is listed in the source bundle. The vulnerability is scoped to Stored Procedure behavior and availability impact. Evidence is incomplete on exploit details, affected downstream products, and specific fixed versions beyond Oracle CPU guidance, so validation should remain version- and vendor-advisory driven.

Mitigation direction

  • Apply Oracle April 2021 CPU guidance for MySQL Server.
  • Upgrade MySQL Server to a vendor-supported fixed version.
  • Restrict MySQL network access to trusted administrative and application paths.
  • Review and reduce high-privilege MySQL accounts where possible.
  • Check the NetApp advisory if NetApp products are in scope.

Validation and detection

  • Inventory MySQL Server versions and flag 8.0.23 or earlier.
  • Confirm Oracle CPU or later vendor fixes are applied.
  • Review MySQL privileged accounts and network access paths.
  • Check monitoring for unexplained MySQL hangs or repeatable crashes.
  • Document whether NetApp advisory NTAP-20210513-0002 applies to your environment.
Prepared
Confidence
high
Sources
4

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-2021-2217 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
3Source 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-2021-2217Attack 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 Server8.0.23 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.