CVE-2026-22281

Severity: medium (CVSS 4.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-01-22 · updated 2026-06-17
Weakness: CWE-367

Description

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.

Affected products

Dell PowerScale OneFS: from 9.5.0.0 before 9.5.1.6; from 9.6.0.0 before 9.7.1.11; from 9.8.0.0 before 9.10.1.4; from 9.11.0.0 before 9.13.0.0 — fixed in 9.10.1.4, 9.13.0.0, 9.5.1.6, 9.7.1.11

How to fix

Upgrade to a fixed version: Dell PowerScale OneFS 9.10.1.4, 9.13.0.0, 9.5.1.6, 9.7.1.11. Check the vendor advisory for mitigations.

References

https://www.dell.com/support/kbdoc/en-us/000415586/dsa-2026-049-security-update-for-dell-powerscale-onefs-multiple-vulnerabilities

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