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NVD / CVE Program· CNA dell

CVE-2026-22281: Dell PowerScale OneFS, versions 9.5.0.0 through 9.5.1.5, versions 9.6.0.0 through 9.7.1.10, versions 9.8.0.0 through 9.10.1.3, versions star

Noroxi assessment

Priority: Monitor (action score 19/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.16% (FIRST EPSS).
  • Someone on the same network segment can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: Dell PowerScale OneFS 9.10.1.4, 9.13.0.0, 9.5.1.6.

Low priority for now. Upgrade to Dell PowerScale OneFS 9.10.1.4, 9.13.0.0, 9.5.1.6 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Dell PowerScale OneFS, versions 9.5.0.0 through 9.5.1.5, versions 9.6.0.0 through 9.7.1.10, versions 9.8.0.0 through 9.10.1.3, versions starting from 9.11.0.0 and prior to 9.13.0.0, contains a Time-of-check Time-of-use (TOCTOU) race condition vulnerability. A low privileged attacker with adjacent network access could potentially exploit this vulnerability, leading to denial of service.

MediumCVSS 4.8 · v3.1—No exploit Fix available
Published
Jan 22, 2026
Updated
Jun 17, 2026
EPSS
0.1% · 6th percentile

Report tools

JSON

Action score

19

Monitor

Low priority for now.

CVSS
19 / 40 · 4.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
4.8
CNA · dell
3.5
1.3 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-22281

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
dellpowerscale onefs

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • dell powerscale onefs9.5.0.0 and later · before 9.5.1.6
  • dell powerscale onefs9.6.0.0 and later · before 9.7.1.11
  • dell powerscale onefs9.8.0.0 and later · before 9.10.1.4
  • dell powerscale onefs9.11.0.0 and later · before 9.13.0.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (dell). Independent of NVD's CPE analysis and usually ahead of it.

  • Dell PowerScale OneFS

    • N/A and later · before 9.13.0.0affected · semver
    • N/A and later · before 9.5.1.6affected · semver
    • N/A and later · before 9.7.1.11affected · semver
    • N/A and later · before 9.10.1.4affected · semver

Same product

dell: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-22278Dell PowerScale OneFS versions prior to 9.13.0.0 contains an improper restriction of excessive authentication attempts vulnerability.
    39Monitor
  • CVE-2024-53298Dell PowerScale OneFS, versions 9.5.0.0 through 9.10.0.1, contains a missing authorization vulnerability in the NFS export.
    39Monitor
  • CVE-2025-27690Dell PowerScale OneFS, versions 9.5.0.0 through 9.10.1.0, contains a use of default password vulnerability.
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2026-22279Jan 22, 2026 · Dell PowerScale OneFS, versions prior 9.13.0.0, contains an insufficient logging vulnerability.
    30Monitor
  • ← EarlierCVE-2026-22280Jan 22, 2026 · Dell PowerScale OneFS, versions 9.5.0.0 through 9.5.1.5, versions 9.6.0.0 through 9.7.1.10, versions 9.8.0.0 through 9.10.1.3, versions star
    22Monitor
  • Later →CVE-2026-21421Mar 4, 2026 · 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
    26Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Dell PowerScale OneFS9.10.1.4Vendor (CNA)
Dell PowerScale OneFS9.13.0.0Vendor (CNA)
Dell PowerScale OneFS9.5.1.6Vendor (CNA)
Dell PowerScale OneFS9.7.1.11Vendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-30101259 days apartDell PowerScale OneFS, versions 9.8.0.0 through 9.10.1.0, contain a time-of-check time-of-use (TOCTOU) race condition vulnerability.
    25Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone on the same network segment can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-367 · Time-of-check Time-of-use (TOCTOU) Race Condition

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records