CVE-2026-91527
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk33th percentile - higher than 33% of all known CVEs
Summary
Vulnerability in the Oracle ZFS Storage Appliance Kit product of Oracle Systems (component: Core), affecting version 8.8. An easily exploitable flaw allows a low-privileged attacker with HTTP network access to take over Oracle ZFS Storage Appliance Kit.
Risk Assessment
A low-privileged attacker can take over the storage appliance, risking confidentiality, integrity, and availability of data. A CVSS score of 8.8 indicates high risk for data storage infrastructure.
Recommendation
Immediately install the security updates for Oracle ZFS Storage Appliance Kit version 8.8. It is also recommended to restrict network access to the appliance's HTTP interface.
Other vulnerabilities in Oracle ZFS Storage Appliance Kit
See all- CVE-2026-101597Medium
Vulnerability in Oracle ZFS Storage Appliance Kit (Core component) affects version 8.8. An easily exploitable network attack by an unauthenticated attacker can result in unauthorized read access to a subset of data.
- CVE-2025-62480Low
Vulnerability in the Oracle ZFS Storage Appliance Kit product (component: Naming Subsystem). The supported version affected is 8.8. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle ZFS Storage Appliance Kit, resulting in unauthorized ability to cause a partial denial of service. CVSS 3.1 Base Score 2.7 (Availability impacts).
- CVE-2025-62479Low
Vulnerability in Oracle ZFS Storage Appliance Kit (component: Block Storage). Affected version is 8.8. A high privileged attacker with network access via HTTP can compromise the appliance, resulting in partial denial of service. CVSS 3.1 Base Score 2.7 (Availability impacts).
- CVE-2025-62478Medium
Oracle ZFS Storage Appliance Kit version 8.8 contains a vulnerability in the Object Store component. A high privileged attacker with network access via HTTP can exploit it to cause a hang or frequently repeatable crash (complete DOS). CVSS 4.9 (Availability impact).
- CVE-2025-62477Medium
Oracle ZFS Storage Appliance Kit version 8.8 contains a vulnerability in the Remote Replication component. A high privileged attacker with network access via HTTP can exploit it to cause a hang or frequently repeatable crash (complete DOS). CVSS 4.9 (Availability impact).
- CVE-2025-62476Medium
Vulnerability in Oracle ZFS Storage Appliance Kit (component: Remote Replication) affecting version 8.8. A high-privileged attacker with network access via HTTP can cause a hang or frequently repeatable crash (complete DoS) of the appliance.
- CVE-2025-62475Medium
Oracle ZFS Storage Appliance Kit version 8.8 contains a vulnerability in the Core component. A high privileged attacker with network access via HTTP can exploit it to cause a hang or frequently repeatable crash (complete DOS). CVSS 4.9 (Availability impact).
- CVE-2025-62290High
Vulnerability in Oracle ZFS Storage Appliance Kit (Block Storage component) version 8.8. A high privileged attacker with network access via HTTP can compromise the appliance, potentially leading to full takeover. CVSS 7.2.
- CVE-2025-62289Medium
Vulnerability in Oracle ZFS Storage Appliance Kit version 8.8, in the Filesystems component. A high privileged attacker with network access via HTTP can cause a hang or frequently repeatable crash (complete DoS) of the appliance. CVSS 4.9 (Availability impact).
- CVE-2025-53046Medium
Vulnerability in Oracle ZFS Storage Appliance Kit (Analytics component) version 8.8. A high-privileged attacker with network access via HTTP can remotely cause a hang or frequently repeatable crash (complete DOS) of the appliance. CVSS 3.1 Base Score 4.9 (Availability impacts).
Original NVD description (English source)
Vulnerability in the Oracle ZFS Storage Appliance Kit product of Oracle Systems (component: Core). The supported version that is affected is 8.8. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle ZFS Storage Appliance Kit. Successful attacks of this vulnerability can result in takeover of Oracle ZFS Storage Appliance Kit. CVSS 3.1 Base Score 8.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS