---
id: CVE-2026-91253
title: >-
  Vulnerability in the Oracle Solaris product of Oracle Systems (component:
  Kernel)
summary: >-
  Vulnerability in the Oracle Solaris product of Oracle Systems (component:
  Kernel).   The supported version that is affected is 11.4. Easily exploitable
  vulnerability allows low privileged attacker with logon to the infrastructure
  where O…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
vendor: Oracle Corporation
product: Oracle Solaris
affected:
  - oracle_solaris 11.4
published: '2026-10-20'
updated: '2026-10-20'
sourceUpdated: '2026-10-20T21:24:54.586Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-91253'
references:
  - url: 'https://www.oracle.com/security-alerts/cpuoct2026.html'
    label: Oracle Advisory
tags:
  - cve.org
ingestedAt: '2026-10-20T22:23:33.821Z'
---

## Overview

Vulnerability in the Oracle Solaris product of Oracle Systems (component: Kernel).   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).

## Affected

- `oracle_solaris 11.4`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.