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CVE Record

CVE-2021-2326: Vulnerability in the Database Vault component of Oracle Database Server.

Vulnerability in the Database Vault component of Oracle Database Server. Supported versions that are affected are 12.2.0.1 and 19c. Easily exploitable vulnerability allows high privileged attacker having DBA privilege with network access via Oracle Net to compromise Database Vault. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Database Vault accessible data. CVSS 3.1 Base Score 2.7 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/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

This is a low-severity Oracle Database Vault confidentiality issue. An attacker already holding DBA privileges and network access through Oracle Net could read some Database Vault-accessible data without authorization. Business risk is highest where Database Vault protects sensitive data from privileged database users.

Executive priority

Handle through normal database patch governance unless Database Vault is used for high-value regulated data or DBA access is weakly controlled. The flaw is low severity but directly concerns privileged access boundaries.

Technical view

CVE-2021-2326 affects Oracle Database Server Database Vault in Enterprise Edition 12.2.0.1 and 19c. The CVSS 3.1 vector indicates network reachability, low attack complexity, high privileges required, no user interaction, and low confidentiality impact only.

Likely exposure

Exposure is limited to Oracle Database Enterprise Edition 12.2.0.1 or 19c deployments using the Database Vault component and reachable through Oracle Net by DBA-privileged users.

Exploitation context

The provided sources do not show active exploitation, and the CVE is not marked KEV. Exploitation requires existing DBA privilege, so this is mainly an insider, compromised DBA account, or privileged access governance concern.

Researcher notes

No CWE or detailed root cause is provided in the source bundle. Validation should stay defensive: version, component use, patch state, Oracle Net exposure, and privileged account activity. Do not infer broader Oracle Database impact beyond the listed versions and component.

Mitigation direction

  • Check Oracle July 2021 CPU guidance for the applicable Database Server update.
  • Prioritize patching affected Database Vault deployments protecting sensitive data.
  • Restrict Oracle Net access to trusted administrative networks and hosts.
  • Review DBA account hygiene, role assignments, and privileged access monitoring.

Validation and detection

  • Inventory Oracle Database Enterprise Edition instances and versions.
  • Confirm whether Database Vault is enabled on 12.2.0.1 or 19c systems.
  • Verify applicable Oracle CPU patches are installed.
  • Review logs for unusual DBA access to Database Vault-protected data.
Prepared
Confidence
high
Sources
3

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.

description · low confidence lookup

Database behavior lookup

The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2021-2326 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:L/I:N/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
2Source 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:L/I:N/A:N1.21.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

2.7Low
CVSS 3.1 vector shape for CVE-2021-2326Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/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 CorporationDatabase - Enterprise Edition12.2.0.1, 19cListed
Weakness

CWE details

No CWE listed

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