Denial of Service in Oracle Outside In Technology

Publication date: 2026-10-20

Last updated on: 2026-10-20

Assigner: Oracle

Description

Vulnerability in the Oracle Outside In Technology product of Oracle Fusion Middleware (component: Outside In Core). The supported version that is affected is 8.5.8. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Outside In Technology. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Outside In Technology. CVSS 3.1 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H).

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-10-20

Generated

2026-10-21

AI Q&A

2026-10-21

EPSS Evaluated

N/A

NVD

CVE-2026-87393

Affected Vendors & Products

Vendor	Product	Version / Range
Oracle	Corporation	Oracle Outside In Technology 8.5.8

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Outside In Technology version 8.5.8. It allows an unauthenticated attacker to cause a denial of service (DOS) via HTTP network access. The attack requires user interaction and can repeatedly crash the system.

Impact Analysis

An attacker could exploit this to make Oracle Outside In Technology unavailable, causing service disruptions. This may lead to downtime for systems relying on this technology for document processing.

Mitigation Strategies

Apply the latest security patches from Oracle for Outside In Technology version 8.5.8. Disable HTTP access to the affected component if not required. Monitor network traffic for unusual patterns targeting the Oracle Outside In Technology service.

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