Security readout for executives and security teams
Plain-English summary
CVE-2021-2401 is an Oracle BI Publisher vulnerability that can let an unauthenticated remote attacker read some accessible BI Publisher data over HTTP. It is not described as full system compromise, but it can expose sensitive reporting or business data if affected versions are reachable.
Executive priority
Treat as a near-term data-exposure issue for Oracle reporting environments. Prioritize internet-facing or business-critical BI Publisher systems, then internal deployments handling sensitive reports or regulated data.
Technical view
Oracle reports an easily exploitable network vulnerability in BI Publisher, component E-Business Suite XDO, affecting versions 5.5.0.0.0, 11.1.1.9.0, 12.2.1.3.0, and 12.2.1.4.0. CVSS 3.1 is 5.3: network, low complexity, no privileges, no user interaction, low confidentiality impact only.
Likely exposure
Organizations using Oracle BI Publisher or E-Business Suite XDO on the listed versions are potentially exposed, especially where BI Publisher HTTP endpoints are reachable from untrusted networks.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. Risk is still meaningful because exploitation is unauthenticated, network-based, and low complexity, with confirmed unauthorized data-read impact.
Researcher notes
Available evidence supports a confidentiality-only issue with no integrity or availability impact in the CVSS vector. The source bundle does not include root-cause details, proof-of-concept material, or confirmed exploitation, so validation should stay asset, version, patch, and exposure focused.
Mitigation direction
- Review Oracle July 2021 CPU guidance for the applicable BI Publisher fixes.
- Patch affected Oracle BI Publisher and Fusion Middleware installations per vendor instructions.
- Restrict BI Publisher HTTP access to trusted networks and authenticated paths where possible.
- Confirm unsupported or legacy deployments have a vendor-supported remediation plan.
- Monitor BI Publisher and web access logs for unusual unauthenticated access patterns.
Validation and detection
- Inventory Oracle BI Publisher and E-Business Suite XDO deployments.
- Confirm installed versions against 5.5.0.0.0, 11.1.1.9.0, 12.2.1.3.0, and 12.2.1.4.0.
- Verify whether Oracle July 2021 CPU or later relevant fixes are applied.
- Map which BI Publisher HTTP endpoints are internet-facing or partner-facing.
- Review recent logs for unexpected unauthenticated requests to BI Publisher resources.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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.
CVE-2021-2401 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N3.91.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.oracle.com/security-alerts/cpujul2021.htmlCVE reference · x_refsource_MISC
- https://www.zerodayinitiative.com/advisories/ZDI-21-887/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
