CVE-2026-91242: High severity Oracle Oracle Solaris vulnerability

Published Oct 20, 2026
·
Updated

Vulnerability in the Oracle Solaris product of Oracle Systems (component: Plugins). The supported version that is affected is 11.4. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Oracle Solaris executes to compromise Oracle Solaris. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Solaris, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Solaris accessible data as well as unauthorized access to critical data or complete access to all Oracle Solaris accessible data. CVSS 3.1 Base Score 7.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:N).

Affected Software

2 affected components
Oracle Oracle Solaris=11.4
Oracle Solaris=11.4

Event History

Oct 20, 2026
CVE Published
via MITRE·09:24 PM
Data Sourced
via MITRE·09:24 PM
DescriptionSeverity
Data Sourced
via NVD·10:20 PM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

Who is realistically exposed to exploitation?

Exposure is limited to supported Oracle Solaris 11.4 installations. An attacker must already have high privileges and log on to infrastructure where Oracle Solaris is running.

2

Does exploitation require user interaction?

Yes. Successful exploitation requires interaction by a person other than the attacker. The issue is locally exploitable, not described as remotely exploitable.

3

What could a successful attacker do?

A successful attack could provide unauthorized access to critical data or all data accessible to Oracle Solaris, and allow creation, deletion, or modification of that data. The impact can also extend significantly to additional products because the vulnerability has a scope change.

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