What is CVE-2021-26990?

CVE-2021-26990 is a critical-severity vulnerability in NetApp Cloud Manager, classified under Missing Authorization. CVSS score: 9.1/10. Published 2021-03-19.

How severe is CVE-2021-26990?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in NetApp Cloud Manager

CVE-2021-26990

Cloud Manager versions prior to 3.9.4 are susceptible to a vulnerability that could allow a remote attacker to overwrite arbitrary system files.

Vulnerability class: Broken Access Control

Published 2021-03-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H.

EPSS exploit prediction

EPSS: 0.015 (74.0th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 74.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000

Affected products

NetApp Cloud Manager
Cloud Manager — versions Prior to 3.9.4

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

security.netapp.com/advisory/NTAP-20210318-0001 (Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2021-26990?: CVE-2021-26990 is a critical-severity vulnerability in NetApp Cloud Manager, classified under Missing Authorization. CVSS score: 9.1/10. Published 2021-03-19.
How severe is CVE-2021-26990?: Critical severity. CVSS v3 base score is 9.1 out of 10.