How severe is CVE-2020-8581?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in NetApp Clustered Data Ontap

CVE-2020-8581

Clustered Data ONTAP versions prior to 9.3P20 and 9.5 are susceptible to a vulnerability which could allow an authenticated but unauthorized attacker to overwrite arbitrary data when VMware vStorage support is enabled.

Published 2021-01-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.009 (57.9th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

NetApp Clustered Data Ontap — versions 9.3
Clustered Data Ontap — versions Versions prior to 9.3P20 and 9.5

References

security.netapp.com/advisory/ntap-20210119-0001/ (Vendor Advisory)

Frequently asked questions

What is CVE-2020-8581?: CVE-2020-8581 is a medium-severity vulnerability in NetApp Clustered Data Ontap. CVSS score: 6.5/10. Published 2021-01-19.
How severe is CVE-2020-8581?: Medium severity. CVSS v3 base score is 6.5 out of 10.