CVE-2026-91252: High severity Oracle Oracle Solaris vulnerability

Published Oct 20, 2026
·
Updated

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).

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

Which systems are exposed to this issue?

Oracle Solaris 11.4 systems are affected when the vulnerable Services component is reachable over HTTP. The issue can be exploited remotely over the network.

2

Does exploitation require authentication or user interaction?

No. An unauthenticated attacker can exploit the vulnerability with network access via HTTP, and no user interaction is required.

3

What could an attacker achieve?

Successful exploitation can allow an attacker to read a subset of accessible Oracle Solaris data and cause a system hang or a frequently repeatable complete denial of service. The described impact does not include integrity modification.

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