CVE-2026-91483

Analyzed Analyzed - Analysis Complete

Oracle Outside In Technology Memory Corruption Vulnerability

Publication date: 2026-10-20

Last updated on: 2026-11-04

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 logon to the infrastructure where Oracle Outside In Technology executes 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 takeover of Oracle Outside In Technology. CVSS 3.1 Base Score 7.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-11-04

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-91483

EUVD

EUVD-2026-106728

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	outside_in_technology	8.5.8

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-502	The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Outside In Technology version 8.5.8, part of Oracle Fusion Middleware. It allows an unauthenticated attacker with local access to compromise the system through human interaction. Successful exploitation could lead to full takeover of the technology.

Detection Guidance

Detection of this vulnerability requires checking for the affected Oracle Outside In Technology version 8.5.8. Inspect installed Oracle Fusion Middleware components and verify if Outside In Technology is present and running. Check Oracle's security advisories for patches or updates.

Impact Analysis

If exploited, this vulnerability could allow an attacker to gain control over Oracle Outside In Technology, potentially leading to unauthorized access, data breaches, or system manipulation. It requires local access and user interaction.

Compliance Impact

This vulnerability allows unauthorized takeover of Oracle Outside In Technology, which could lead to unauthorized access or modification of sensitive data. This may impact compliance with GDPR (data confidentiality and integrity) and HIPAA (protected health information security) if exploited.

Mitigation Strategies

Apply the latest security patches from Oracle for Outside In Technology version 8.5.8. Disable or restrict access to the affected component if not required. Monitor Oracle security advisories for updates and follow their recommended mitigation steps.

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