Service interruption via undisclosed TOCTOU race
Published Jan 22, 2026 · Updated Jan 22, 2026
A TOCTOU race condition in Dell PowerScale OneFS allows remote authenticated users on an adjacent network to interrupt service. Dell has not published the affected component, checked resource, or non-atomic operation that permits its state to change between validation and use. Exploitation requires low privileges and adjacent-network access; the reported consequence is limited to service interruption, with no confidentiality or integrity impact.
Summary
What happened
A TOCTOU race condition in Dell PowerScale OneFS allows remote authenticated users on an adjacent network to interrupt service. Dell has not published the affected component, checked resource, or non-atomic operation that permits its state to change between validation and use. Exploitation requires low privileges and adjacent-network access; the reported consequence is limited to service interruption, with no confidentiality or integrity impact.
The record
- CVE
- CVE-2026-22281
- Published
- Jan 22, 2026
- Updated
- Jan 22, 2026
- Vendor
- Dell Technologies
- Product
- PowerScale OneFS
- Classifications
- CWE-367, CAPEC-29, T1499
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 22, 2026CVE publishedPublication date reported by the CVE source.
- Jan 22, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=N/A <9.10.1.4
- Affected versionversion=N/A <9.13.0.0
- Affected versionversion=N/A <9.5.1.6
- Affected versionversion=N/A <9.7.1.11
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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