What is CVE-2026-21423?

CVE-2026-21423 is a medium-severity vulnerability in Dell Powerscale Onefs, classified under Incorrect Default Permissions. CVSS score: 6.7/10. Published 2026-03-04.

How severe is CVE-2026-21423?

Medium severity. CVSS v3 base score is 6.7 out of 10.

Vulnerability in Dell Powerscale Onefs

CVE-2026-21423

Dell PowerScale OneFS, versions prior to 9.10.1.6 and versions 9.11.0.0 through 9.12.0.1, contains an incorrect default permissions vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to code execution, denial of service, elevation of privileges, and information disclosure.

EPSS: 0.002 (5.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Dell Powerscale Onefs — versions 9.11.0.0 through 9.12.0.1, Versions prior to 9.10.1.6
Dell Powerscale_onefs

Weakness classification (CWE)

CWE-276 — Incorrect Default Permissions

References

security_alert@emc.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-21423?: CVE-2026-21423 is a medium-severity vulnerability in Dell Powerscale Onefs, classified under Incorrect Default Permissions. CVSS score: 6.7/10. Published 2026-03-04.
How severe is CVE-2026-21423?: Medium severity. CVSS v3 base score is 6.7 out of 10.