CVE-2026-21930 Vulnerability in the Oracle ZFS Storage Appliance Kit product of Oracle Systems (component: Filesystems).

Low 2.3 Published 20 Jan 2026 Updated 21 Jan 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-21930?

CVE-2026-21930 is a low-severity vulnerability in Oracle ZFS Storage Appliance Kit, published on 20 Jan 2026.

Official description

Vulnerability in the Oracle ZFS Storage Appliance Kit product of Oracle Systems (component: Filesystems). The supported version that is affected is 8.8. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Oracle ZFS Storage Appliance Kit executes to compromise Oracle ZFS Storage Appliance Kit. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle ZFS Storage Appliance Kit accessible data. CVSS 3.1 Base Score 2.3 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N).

Which versions are affected by CVE-2026-21930?

It affects 1 product.

Products include Oracle Sun Zfs Storage Appliance Kit.

How do I fix CVE-2026-21930?

No fix has been published for CVE-2026-21930 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-21930 being exploited?

There is no known exploitation of CVE-2026-21930 in the wild and no public exploit code.

Sources

Also known as GHSA-wc5v-983w-9v5j.