CVE-2026-91458

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

EPSS Scores

Probability:
Percentile:

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-2026-91458

EUVD

EUVD-2026-106706

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	outside_in_technology	8.5.8

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-20	The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

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 system access to potentially take over the software. Exploitation requires user interaction from someone other than the attacker.

Impact Analysis

If exploited, this vulnerability could lead to complete compromise of Oracle Outside In Technology, resulting in loss of confidentiality, integrity, and availability of data processed by the software. Attackers could gain control over the system.

Compliance Impact

This vulnerability could lead to unauthorized access or data breaches, which may violate compliance requirements under GDPR, HIPAA, or other regulations. Organizations using affected software may face legal and regulatory penalties.

Mitigation Strategies

Apply the latest security patches or updates provided by Oracle for Oracle Outside In Technology version 8.5.8. Disable or restrict access to the vulnerable component if patches are not immediately available. Monitor Oracle security advisories for further guidance.

Hi! I’m here to help you understand CVE-2026-91458. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70

EPSS Chart

Security Radar

News mentioning this vulnerability

Loading related security news...