CVE-2026-91252

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. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP 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 and unauthorized read access to a subset of Oracle Solaris accessible data. CVSS 3.1 Base Score 8.2 (Confidentiality and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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-2026-91252

EUVD

EUVD-2026-106507

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 that allows an unauthenticated attacker to remotely access the system via HTTP. It can cause the system to hang or crash repeatedly, leading to a denial of service (DOS). Additionally, it may allow unauthorized read access to some data on the system.

Detection Guidance

Detection of CVE-2026-91252 requires checking for vulnerable Oracle Solaris 11.4 systems. Monitor network traffic for HTTP requests targeting Oracle Solaris services. Inspect system logs for crashes or hangs. Use Oracle's official tools like 'solaris-update' or 'pkg' to verify patch levels. Check for unauthorized data access attempts in audit logs.

Impact Analysis

If exploited, this vulnerability could disrupt services by causing system crashes or hangs, leading to downtime. It may also expose sensitive data to unauthorized parties, affecting confidentiality.

Compliance Impact

This vulnerability could lead to unauthorized data access, violating GDPR and HIPAA requirements for data protection and confidentiality. Organizations may face compliance violations and penalties if exploited.

Mitigation Strategies

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

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