Dell PowerScale OneFS up to 9.10.1.6/9.11.0.0/9.12.0.1 default permission

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Dell PowerScale OneFS up to 9.10.1.6/9.11.0.0/9.12.0.1. This affects an unknown part. The manipulation leads to default permission. This vulnerability is listed as CVE-2026-21423. The attack must be carried out locally. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Dell PowerScale OneFS up to 9.10.1.6/9.11.0.0/9.12.0.1. It has been rated as critical. This issue affects an unknown functionality. The manipulation with an unknown input leads to a default permission vulnerability. Using CWE to declare the problem leads to CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at dell.com. The identification of this vulnerability is CVE-2026-21423 since 12/24/2025. The exploitation is known to be easy. An attack has to be approached locally. Additional levels of successful authentication are necessary for exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/05/2026). MITRE ATT&CK project uses the attack technique T1222 for this issue.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-0520). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Dell PowerScale OneFS

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.6

VulDB Base Score: 6.7
VulDB Temp Score: 6.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.7
CNA Vector (dell): 🔒

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Default permission
CWE: CWE-276 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/24/2025 CVE reserved
03/04/2026 +70 days Advisory disclosed
03/04/2026 +0 days VulDB entry created
03/05/2026 +1 days VulDB entry last update

Sourcesinfo

Vendor: dell.com

Advisory: dsa-2026-038
Status: Confirmed

CVE: CVE-2026-21423 (🔒)
GCVE (CVE): GCVE-0-2026-21423
GCVE (VulDB): GCVE-100-348713
CERT Bund: WID-SEC-2026-0520 - Dell PowerScale OneFS: Mehrere Schwachstellen

Entryinfo

Created: 03/04/2026 14:27
Updated: 03/05/2026 09:35
Changes: 03/04/2026 14:27 (63), 03/05/2026 09:35 (7)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you need the next level of professionalism?

Upgrade your account now!