CVE-2026-91537

Analyzed Analyzed - Analysis Complete

Privilege Escalation in Oracle Solaris

Publication date: 2026-10-20

Last updated on: 2026-11-04

Assigner: Oracle

Description

Vulnerability in the Oracle Solaris product of Oracle Systems (component: Utility). The supported version that is affected is 11.4. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Solaris executes to compromise Oracle Solaris. Successful attacks of this vulnerability can result in takeover of Oracle Solaris. 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).

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-2026-91537

EUVD

EUVD-2026-106769

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	solaris	11.4

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-269	The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Solaris 11.4 that allows a low-privileged attacker with local access to take over the system. It has a high impact on confidentiality, integrity, and availability with a CVSS score of 7.8.

Impact Analysis

An attacker could gain full control of the Oracle Solaris system, leading to potential data breaches, system manipulation, or denial of service. This requires only local access, making it easier to exploit.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR and HIPAA compliance requirements for data protection and confidentiality.

Mitigation Strategies

Apply the latest Oracle Solaris patches from Oracle as soon as possible to address the vulnerability in the Utility component.

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