Security readout for executives and security teams
Plain-English summary
CVE-2021-2149 is a low-severity Oracle ZFS Storage Appliance Kit issue affecting version 8.8. A logged-in, low-privileged attacker could alter some appliance-accessible data. The issue is difficult to exploit and does not indicate data disclosure or service outage in the provided sources.
Executive priority
Treat this as routine but real integrity risk. It should not outrank internet-facing critical issues, but storage systems hold business-critical data, so confirm exposure and patch status during the next maintenance cycle.
Technical view
The CVSS 3.1 vector is AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N, scoring 2.5. The weakness is in Oracle ZFS Storage Appliance Kit Core. Successful exploitation can allow unauthorized update, insert, or delete access to some accessible data, with integrity-only impact.
Likely exposure
Exposure appears limited to organizations running Oracle Sun ZFS Storage Appliance Kit AK Software version 8.8, especially where low-privileged users can log on to appliance infrastructure.
Exploitation context
The source bundle does not show active exploitation, and KEV status is false. Exploitation requires local access, prior low privileges, and high attack complexity.
Researcher notes
No CWE, exploit details, CPEs, or exact fixed version were provided in the bundle. Analysis is based on Oracle and CVE metadata only; avoid assuming broader product impact beyond AK Software 8.8.
Mitigation direction
- Review Oracle April 2021 CPU guidance for the applicable ZFS Storage Appliance Kit update.
- Restrict low-privileged logon access to appliance infrastructure.
- Prioritize remediation where untrusted or shared administrative access exists.
- Monitor Oracle advisories for any clarified fixes or compensating controls.
Validation and detection
- Inventory Oracle ZFS Storage Appliance Kit deployments and confirm AK Software version.
- Check whether version 8.8 is present in production or managed environments.
- Review appliance access logs for unexpected low-privileged administrative activity.
- Confirm remediation status against Oracle April 2021 CPU guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2021-2149 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Low
- CVSS
- 2.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N11.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
2.5LowVector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Source materials
- CVE List V5 sourceCVE List V5
- https://www.oracle.com/security-alerts/cpuapr2021.htmlCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.