Oracle JD Edwards EnterpriseOne Tools: Privilege escalation in Installation Security
Summary
Oracle JD Edwards EnterpriseOne Tools versions 9.2.0.0 through 9.2.26.5 contain an improper privilege management flaw (CWE-269) in the Installation Security component. A low-privileged user with a logon to the host running EnterpriseOne Tools can exploit it with low complexity and no user interaction to take over the product, with high impact on confidentiality, integrity and availability. The attacker must already have a valid local account, so the main risk is escalation after a stolen or misused account or lateral movement.
Affected
- Oracle JD Edwards EnterpriseOne Tools 9.2.0.0 through 9.2.26.5
Fixed in
- Fixed in Oracle's October 2026 Critical Patch Update (published 20 Oct 2026). The first fixed patch level for this CVE is unknown; check the JD Edwards section of the advisory.
Workaround
- No workaround documented. Patching is the only documented remedy.
- Until patched, limit interactive and shell logons to JDE hosts to administrators.
Exploitation
- Oracle has not stated exploitation of this CVE.
- Not listed in CISA KEV as of 21 Oct 2026; EPSS below 1%.
- No public proof of concept found; search coverage was limited.
Our recommendation
- Apply the JD Edwards EnterpriseOne Tools patch from Oracle's October 2026 CPU that applies to your release.
- Restrict logons to JDE hosts and review local accounts on those hosts.
- Monitor for changes to JDE installation directories and services.
- Patch the whole JDE stack in the same window, including CVE-2026-91299 (CVSS 10.0).
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Oracle October 2026 Critical Patch Update www.oracle.com
- VulDB entry CVE-2026-91311 vuldb.com
- OpenCVE CVE-2026-91311 app.opencve.io
- Vulners CVE-2026-91311 vulners.com
- Brandefense: Oracle October 2026 CPU brandefense.io
- Tenable: Oracle October 2026 CPU www.tenable.com
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, 23:20.
Original description (NVD)
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Installation Security). Supported versions that are affected are 9.2.0.0-9.2.26.5. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where JD Edwards EnterpriseOne Tools executes to compromise JD Edwards EnterpriseOne Tools. Successful attacks of this vulnerability can result in takeover of JD Edwards EnterpriseOne Tools. 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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