CVE-2026-91324

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: Libraries). The supported version that is affected is 11.4. Difficult to exploit vulnerability allows unauthenticated 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. 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:N/UI:R/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-2026-91324

EUVD

EUVD-2026-106578

Affected Vendors & Products

Vendor	Product	Version / Range
oracle	solaris	11.4

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-404	The product does not release or incorrectly releases a resource before it is made available for re-use.

Attack-Flow Graph

Executive Summary

This is a vulnerability in Oracle Solaris 11.4 where an unauthenticated attacker with local access can exploit it to cause a denial of service (DOS) through repeated crashes or system hangs. Exploitation requires interaction from another user on the system.

Detection Guidance

Detection of this vulnerability requires checking for affected versions of Oracle Solaris 11.4. Review system logs for crashes or hangs in the Libraries component. Monitor for unauthorized access attempts or unusual activity in the infrastructure where Oracle Solaris operates.

Impact Analysis

If you use Oracle Solaris 11.4, an attacker with local access could crash or hang your system, disrupting operations. This could lead to downtime and loss of service availability for users and applications.

Compliance Impact

This vulnerability causes denial-of-service (DoS) conditions in Oracle Solaris, leading to system crashes or hangs. Such disruptions can impact data availability, which may violate compliance requirements under GDPR (data availability) and HIPAA (system reliability for protected health information).

Mitigation Strategies

Apply the latest Oracle Solaris patches from Oracle immediately to address the vulnerability in the Libraries component. Monitor Oracle's security advisories for updates and restrict user access to the infrastructure where Oracle Solaris executes to minimize attack surfaces.

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