Oracle Business Intelligence EE: Improper privilege management in Presentation Services
Summary
Oracle Business Intelligence Enterprise Edition 12.2.1.4.0 contains a flaw in the Presentation Services component, classified as CWE-269 (Improper Privilege Management). An attacker with low privileges and logon access to the server running the product can compromise it, and successful attacks can lead to a takeover of the application. No user interaction is required, and Oracle rates the flaw CVSS 7.8 (High).
Affected
- Oracle Business Intelligence Enterprise Edition 12.2.1.4.0 (Presentation Services component)
Fixed in
Unknown.
- Check Oracle's October 2026 Critical Patch Update for the patch that applies to this CVE.
Workaround
- No vendor workaround found.
- Limit who can log on to the BI server.
- Remove unused accounts and review local administrator rights.
Exploitation
- No known exploitation in the wild.
- No public proof of concept found.
- CISA SSVC data: exploitation none, not automatable.
Our recommendation
- Check whether you run Oracle Business Intelligence Enterprise Edition 12.2.1.4.0.
- Apply the matching patch from Oracle's October 2026 CPU in your normal patch cycle, as soon as the patch is identified.
- Until patched, restrict and monitor logons to the BI server.
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Oracle Critical Patch Update October 2026 www.oracle.com
- Oracle Security Blog: October 2026 Critical Patch Update released blogs.oracle.com
- OpenCVE: CVE-2026-91539 app.opencve.io
- Vulners: CVE-2026-91539 vulners.com
- Strix: CVE-2026-91539 www.strix.ai
- Brandefense: Oracle October 2026 CPU brandefense.io
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 1 Nov 2026, 23:11.
Original description (NVD)
Vulnerability in the Oracle Business Intelligence Enterprise Edition product of Oracle Analytics (component: Presentation Services). The supported version that is affected is 12.2.1.4.0. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Business Intelligence Enterprise Edition executes to compromise Oracle Business Intelligence Enterprise Edition. Successful attacks of this vulnerability can result in takeover of Oracle Business Intelligence Enterprise Edition. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
NVD references (1)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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