Oracle Solaris Vulnerability in Utility Component Exposes Systems to Attacks
CVE-2026-91537

7.8HIGH

Key Information:

Vendor

Oracle
Status
Oracle Solaris
Vendor
CVE Published:
20 October 2026

What is CVE-2026-91537?

A security flaw in the Utility component of Oracle Solaris 11.4 allows a low privileged attacker with logon access to the infrastructure where the system operates to execute malicious actions. This vulnerability can lead to the takeover of Oracle Solaris, posing significant risks to confidentiality, integrity, and availability. It highlights the necessity for robust security measures and timely patching to safeguard vital infrastructure against potential exploits.

Affected Version(s)

Oracle Solaris 11.4

References

https://www.oracle.com/security-alerts/cpuoct2026.html
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.