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CVE Record

CVE-2021-2400: Vulnerability in the Oracle BI Publisher product of Oracle Fusion Middleware (component: E-Business Suite -...

Vulnerability in the Oracle BI Publisher product of Oracle Fusion Middleware (component: E-Business Suite - XDO). Supported versions that are affected are 5.5.0.0.0, 11.1.1.9.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle BI Publisher. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle BI Publisher accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

HighCVSS 7.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2021-2400 is a data-exposure vulnerability in Oracle BI Publisher. An unauthenticated attacker who can reach the service over HTTP may access critical BI Publisher data. The sources do not show integrity damage, outage impact, or confirmed active exploitation.

Executive priority

Treat as high priority for systems handling sensitive reporting data. The main business risk is unauthorized disclosure of critical data, especially if BI Publisher is externally reachable or accessible from broad internal networks.

Technical view

Oracle describes an easily exploitable, unauthenticated network vulnerability via HTTP in BI Publisher, including E-Business Suite XDO. Affected versions are 5.5.0.0.0, 11.1.1.9.0, 12.2.1.3.0, and 12.2.1.4.0. CVSS is 7.5 with high confidentiality impact only.

Likely exposure

Exposure is most likely where affected Oracle BI Publisher or E-Business Suite XDO instances are reachable over HTTP from untrusted networks, partners, or the internet. Internal-only deployments still matter because no credentials are required.

Exploitation context

The bundle states easy remote exploitation over HTTP without authentication. It does not provide exploit details, proof-of-concept status, or evidence of active exploitation. The CVE is not marked as CISA KEV in the supplied data.

Researcher notes

The public bundle does not identify the root cause, affected endpoint, or fixed version detail. Keep validation non-invasive: version checks, exposure review, patch status, and log analysis. Do not assume exploitation in the wild without separate evidence.

Mitigation direction

  • Identify whether affected BI Publisher versions are deployed.
  • Review Oracle July 2021 CPU and current Oracle guidance.
  • Apply Oracle-supported patches or upgrades for affected systems.
  • Restrict HTTP access to trusted networks until remediated.
  • Monitor BI Publisher access logs for unusual unauthenticated data access.

Validation and detection

  • Inventory BI Publisher and E-Business Suite XDO versions.
  • Confirm whether HTTP endpoints are reachable from untrusted networks.
  • Verify Oracle CPU or vendor-recommended remediation status.
  • Review access logs around sensitive report or data retrieval activity.
  • Document compensating controls where patching is delayed.
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-2021-2400 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
High
CVSS
7.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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
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
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2021-2400Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 CorporationBI Publisher (formerly XML Publisher)5.5.0.0.0, 11.1.1.9.0, 12.2.1.3.0, 12.2.1.4.0Listed
Weakness

CWE details

No CWE listed

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