CVE-2026-91244

Analyzed Analyzed - Analysis Complete

Denial of Service in Oracle Solaris

Publication date: 2026-10-20

Last updated on: 2026-11-09

Assigner: Oracle

Description

Vulnerability in the Oracle Solaris product of Oracle Systems (component: Services). The supported version that is affected is 11.4. Difficult to exploit 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 unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Solaris. CVSS 3.1 Base Score 4.7 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H).

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-11-09

Generated

2026-11-10

AI Q&A

2026-10-21

EPSS Evaluated

2026-11-08

NVD

CVE-2026-91244

EUVD

EUVD-2026-106499

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	solaris	11.4

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-400	The product does not properly control the allocation and maintenance of a limited resource.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Solaris 11.4 where a low-privileged attacker with local access can cause a denial of service (DOS) by crashing or hanging the system. The attack requires logon to the infrastructure but does not need high privileges.

Detection Guidance

Detection of this vulnerability requires checking for Oracle Solaris 11.4 systems and verifying if the services component is affected. Since this is a local privilege escalation issue, commands should focus on system logs, service status, and patch levels. Use 'pkg info' to check installed Solaris versions and 'svcs -a' to review service states. Ensure all critical patches are applied.

Impact Analysis

If exploited, this vulnerability could lead to system crashes or hangs, disrupting services and causing downtime for Oracle Solaris 11.4 systems. It may require manual intervention to restore normal operations.

Compliance Impact

This vulnerability causes denial-of-service (DoS) conditions in Oracle Solaris, leading to system unavailability. Such disruptions may violate compliance requirements under GDPR (availability of personal data) and HIPAA (access to protected health information) if critical systems are affected.

Mitigation Strategies

Apply the latest Oracle Solaris patches or updates provided by Oracle to address the vulnerability in the Services component.

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EPSS Chart

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