What is the CVSS score of CVE-2026-21423?

CVE-2026-21423 has a CVSS 3.1 base score of 6.7 (Medium). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.0%.

Which versions of Powerscale Onefs are affected by CVE-2026-21423?

CVE-2026-21423 presents notable security risk, a incorrect default permissions vulnerability rated CVSS 6.7. Attackers could gain access beyond their authorized level.

How to fix or mitigate CVE-2026-21423?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Review and tighten file/resource permissions.

Powerscale Onefs CVE-2026-21423

MEDIUM

Incorrect Default Permissions (CWE-276)

2026-03-04 security_alert@emc.com

Denial Of Service Information Disclosure Powerscale Onefs

6.7

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

6.7 MEDIUM

AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:05 vuln.today

CVE Published

Mar 04, 2026 - 13:15 nvd

MEDIUM 6.7

DescriptionCVE.org

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.

AnalysisAI

Incorrect default file permissions in Dell PowerScale OneFS versions before 9.10.1.6 and 9.11.0.0 through 9.12.0.1 allow high-privileged local attackers to achieve code execution, privilege escalation, and information disclosure. The vulnerability requires local access and high privileges to exploit, but no patch is currently available. Affected organizations should implement access controls and monitor for unauthorized local activity until an update is released.

Technical ContextAI

Classified as CWE-276 (Incorrect Default Permissions). Affects Powerscale Onefs. 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.