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CVE Record

CVE-2021-35640: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DDL).

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DDL). Supported versions that are affected are 8.0.26 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 update, insert or delete access to some of MySQL Server accessible data. CVSS 3.1 Base Score 2.7 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N).

LowCVSS 2.7Not KEV-listedUpdated
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Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

CVE-2021-35640 is a low-severity Oracle MySQL Server flaw affecting version 8.0.26 and earlier. It requires a highly privileged attacker with network access, but successful exploitation could let them make unauthorized data changes. The business risk is mainly data integrity, not theft or outage.

Executive priority

Treat this as a scheduled remediation item unless the environment has broad privileged account exposure or untrusted network access to MySQL. The main concern is unauthorized data modification by already powerful users.

Technical view

The issue is in MySQL Server's Server: DDL component. Oracle rates it CVSS 3.1 score 2.7 with AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N. Successful attacks can allow unauthorized update, insert, or delete access to some MySQL-accessible data.

Likely exposure

Exposure is most likely where Oracle MySQL Server 8.0.26 or earlier is reachable over network protocols by high-privileged database users or service accounts. Internet exposure alone is not sufficient based on the cited CVSS privileges requirement.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The vulnerability is described as easily exploitable, but only by a high-privileged attacker with network access.

Researcher notes

No CWE is provided in the source bundle. Public details are limited to Oracle's affected product, DDL component, version range, CVSS vector, and integrity impact. Avoid assuming broader impact, exploit availability, or specific fixed versions beyond vendor guidance.

Mitigation direction

  • Apply Oracle's October 2021 CPU or current MySQL security guidance for affected servers.
  • Inventory MySQL Server instances and identify versions 8.0.26 and earlier.
  • Restrict network access to MySQL services to trusted administrative and application paths.
  • Review and reduce high-privileged MySQL accounts and service credentials.
  • Check third-party vendor advisories, including NetApp, for embedded or bundled exposure.

Validation and detection

  • Confirm installed MySQL Server versions and compare them with Oracle's affected version statement.
  • Verify patch or upgrade completion through package, build, or vendor records.
  • Review privileged MySQL account assignments for unnecessary administrative access.
  • Check database logs for unexpected DDL activity or unauthorized data modification patterns.
  • Validate network controls limit MySQL protocol access to expected sources.
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-2021-35640 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
Low
CVSS
2.7 (3.1)
Known Exploited
No
Published

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

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
2.7CVSS 3.1LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N1.21.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

2.7Low
CVSS 3.1 vector shape for CVE-2021-35640Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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 Server8.0.26 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.