CVE-2026-87421: High severity Oracle Oracle Solaris vulnerability

Published Oct 20, 2026
·
Updated

Vulnerability in the Oracle Solaris product of Oracle Systems (component: Image Packaging System). 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 require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Solaris accessible data as well as unauthorized update, insert or delete access to some of Oracle Solaris accessible data. CVSS 3.1 Base Score 7.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N).

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

Who is exposed to this vulnerability?

Oracle Solaris systems running the supported affected version, 11.4, are exposed if an attacker can reach the relevant service over HTTP. The attacker does not need authentication or prior privileges.

2

Does exploitation require user action?

Yes. Successful exploitation requires interaction by a person other than the attacker, despite the attacker being able to initiate the attack remotely over HTTP.

3

What could a successful attack allow?

An attacker could gain unauthorized access to critical data or complete access to all Oracle Solaris-accessible data. They could also perform unauthorized update, insert, or delete operations on some accessible data.

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