LiveActive security incident?Get immediate response
CVE Record

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....

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.

LowCVSS 3.5Not KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

CVE-2026-22281 is a low-severity denial-of-service issue in Dell PowerScale OneFS. An attacker already on an adjacent network and with low privileges could disrupt availability. This is not described as data theft or system takeover, but storage availability can still affect business operations.

Executive priority

Treat as a routine but relevant storage-platform update. Prioritize higher if affected PowerScale systems support critical workloads or broad internal network access exists.

Technical view

Dell reports a CWE-367 time-of-check time-of-use race condition in PowerScale OneFS 9.5.0.0-9.5.1.5, 9.6.0.0-9.7.1.10, 9.8.0.0-9.10.1.3, and 9.11.0.0 before 9.13.0.0. CVSS is 3.5: adjacent access, low complexity, low privileges, no user interaction, availability impact only.

Likely exposure

Exposure is limited to organizations running the listed Dell PowerScale OneFS versions where low-privileged users or systems can reach the appliance from an adjacent network segment.

Exploitation context

No active exploitation is indicated by the provided sources, and the CVE is not listed as KEV. Exploitation requires adjacent network access and low privileges, reducing broad internet-scale risk.

Researcher notes

The public record provides vulnerability class, affected version ranges, CVSS, and impact, but not technical exploit details. Avoid assuming remote internet exploitation or confidentiality impact from the available evidence.

Mitigation direction

  • Check Dell DSA-2026-049 for the supported update path and apply vendor guidance.
  • Inventory PowerScale OneFS clusters and identify versions in the affected ranges.
  • Restrict adjacent network access to PowerScale management and service interfaces.
  • Review low-privileged accounts with network reachability to affected systems.

Validation and detection

  • Confirm each PowerScale cluster’s OneFS version against the affected ranges.
  • Verify remediation status against Dell DSA-2026-049.
  • Check network segmentation limits adjacent access to PowerScale systems.
  • Monitor availability events for unexplained service disruption.
Prepared
Confidence
high
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-367: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-22281 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
Low
CVSS
3.5 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
3.5CVSS 3.1LowCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L2.11.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

3.5Low
CVSS 3.1 vector shape for CVE-2026-22281Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
DellPowerScale OneFSN/A, N/A, N/A, N/Aunaffected
Weakness

CWE details

CWE-367

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-367 · source CWE mapping

Time-of-check Time-of-use (TOCTOU) Race Condition

Time-of-check Time-of-use (TOCTOU) Race Condition represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs