Cyber Resilience

CVE-2026-22281

Race Condition in Dell Powerscale Onefs 9.5.0.0 – 9.5.1.6

Race Condition
Published
22 January 2026
Modified
28 January 2026
Patch / advisory
View advisory
CVSS Score v3.1 3.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
EPSS Score 0.0016 6th percentile
Risk Priority 15 floored blend · peak EPSS

Summary

CVE-2026-22281 is a low-severity Time-of-check Time-of-use (TOCTOU) Race Condition (CWE-367) vulnerability in Dell Powerscale Onefs. Its CVSS base score is 3.5 (Low).

Operationally, ranked at the 6th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SI-2 (Flaw Remediation) and AC-6 (Least Privilege) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

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…

more

potentially exploit this vulnerability, leading to denial of service.

CWE(s)
CWE-367

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

Insufficient information to map techniques.
Confidence: LOW · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

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CVE-2023-32493Same product: Dell Powerscale Onefs
CVE-2025-30477Same product: Dell Powerscale Onefs
CVE-2023-32492Same product: Dell Powerscale Onefs
CVE-2024-49602Same product: Dell Powerscale Onefs
CVE-2026-24511Same product: Dell Powerscale Onefs
CVE-2023-44295Same product: Dell Powerscale Onefs

Affected Assets

dell
powerscale onefs
9.5.0.0 — 9.5.1.6 · 9.6.0.0 — 9.7.1.11 · 9.8.0.0 — 9.10.1.4

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • SI-2 Flaw Remediation
  • SC-7 Boundary Protection
  • AC-6 Least Privilege
Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V15.4.2
  • V17.2.6

Mitigating Controls (NIST 800-53 r5) AI

SI-2 Flaw Remediation good match
prevent

Directly requires applying vendor patches that eliminate the TOCTOU race condition in the affected OneFS versions.

SC-7 Boundary Protection partial match
prevent

Enforces boundary controls that can block or restrict adjacent-network access required by the low-privileged attacker.

AC-6 Least Privilege partial match
prevent

Limits privileges of local accounts so that even a successful TOCTOU exploitation cannot reach denial-of-service impact.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly include coding standards and reviews that prevent TOCTOU race conditions.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.17 Clock synchronization none match
none

Reliable, synchronized time across systems narrows the exploitable window in which a resource state can change between a security check and its use.

References