CVE-2026-91256 Oracle Solaris - Denial of Service & Information Disclosure

Oracle Solaris 11.4 contains a denial of service and information disclosure vulnerability caused by flaws in Services component, letting low privileged attackers with network HTTP access cause system hang or crash and read some accessible data.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service, Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
Published
20 October 2026
Updated
21 October 2026

Vendor fix

Update to the latest available version of Oracle Solaris.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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