Dell PowerScale OneFS up to 9.10.1.6/9.11.0.0/9.12.0.1 unnecessary privileges

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.6 | $0-$5k | 0.00 |
Summary
A vulnerability has been found in Dell PowerScale OneFS up to 9.10.1.6/9.11.0.0/9.12.0.1 and classified as critical. This issue affects some unknown processing. This manipulation causes unnecessary privileges. This vulnerability is registered as CVE-2026-21426. The attack needs to be launched locally. No exploit is available. The affected component should be upgraded.
Details
A vulnerability classified as critical was found in Dell PowerScale OneFS up to 9.10.1.6/9.11.0.0/9.12.0.1. Affected by this vulnerability is an unknown part. The manipulation with an unknown input leads to a unnecessary privileges vulnerability. The CWE definition for the vulnerability is CWE-250. The product performs an operation at a privilege level that is higher than the minimum level required, which creates new weaknesses or amplifies the consequences of other weaknesses. As an impact it is known to affect 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 execution with unnecessary privileges vulnerability. A high privileged attacker with local access could potentially exploit this vulnerability, leading to denial of service, elevation of privileges, and information disclosure.
It is possible to read the advisory at dell.com. This vulnerability is known as CVE-2026-21426 since 12/24/2025. The exploitation appears to be easy. Attacking locally is a requirement. The exploitation requires an enhanced level of successful authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 03/04/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.
Upgrading eliminates this vulnerability.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Vendor
Name
Version
License
Website
- Vendor: https://www.dell.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.7VulDB 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): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Unnecessary privilegesCWE: CWE-250
CAPEC: 🔒
ATT&CK: 🔒
Physical: Partially
Local: Yes
Remote: No
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Timeline
12/24/2025 CVE reserved03/04/2026 Advisory disclosed
03/04/2026 VulDB entry created
03/04/2026 VulDB entry last update
Sources
Vendor: dell.comAdvisory: dsa-2026-038
Status: Confirmed
CVE: CVE-2026-21426 (🔒)
GCVE (CVE): GCVE-0-2026-21426
GCVE (VulDB): GCVE-100-348715
Entry
Created: 03/04/2026 14:27Changes: 03/04/2026 14:27 (62)
Complete: 🔍
Cache ID: 216::103
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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