How severe is CVE-2017-12421?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in NetApp Clustered Data Ontap

CVE-2017-12421

NetApp Clustered Data ONTAP 8.3.x before 8.3.2P12 allows remote authenticated users to execute arbitrary code on the storage controller via unspecified vectors.

Published 2017-09-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.018 (78.0th percentile), scored 2026-10-24.

Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000

Affected products

NetApp Clustered Data Ontap — versions 8.3, 8.3.1, 8.3.2

References

kb.netapp.com/support/s/article/NTAP-20170831-0002 (Vendor Advisory)

Frequently asked questions

What is CVE-2017-12421?: CVE-2017-12421 is a high-severity vulnerability in NetApp Clustered Data Ontap. CVSS score: 8.8/10. Published 2017-09-01.
How severe is CVE-2017-12421?: High severity. CVSS v3 base score is 8.8 out of 10.