How severe is CVE-2026-40633?

CVE-2026-40633 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-40633 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-40633?

CVE-2026-40633 affects Dell Powerscale Onefs. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-40633?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-40633 published?

CVE-2026-40633 was published on 2026-07-15.

CVE-2026-40633

CVE-2026-40633 is a high-severity vulnerability in Dell Powerscale Onefs with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-532.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-532
Affected product: Dell Powerscale Onefs
Published: 2026-07-15
Last modified: 2026-07-15

Description

Dell PowerScale OneFS versions 9.5.0.0 through 9.10.1.7, versions 9.11.0.0 through 9.13.0.2 contains an Insertion of Sensitive Information into Log File vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Information disclosure.

Frequently asked questions

What is CVE-2026-40633?: Dell PowerScale OneFS versions 9.5.0.0 through 9.10.1.7, versions 9.11.0.0 through 9.13.0.2 contains an Insertion of Sensitive Information into Log File vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Information disclosure.
How severe is CVE-2026-40633?: CVE-2026-40633 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-40633 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-40633?: CVE-2026-40633 affects Dell Powerscale Onefs. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-40633?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-40633 published?: CVE-2026-40633 was published on 2026-07-15.

References

https://www.dell.com/support/kbdoc/en-us/000483600/dsa-2026-261-security-update-for-dell-powerscale-onefs-multiple-vulnerabilities

Affected products (1)

cpe:2.3:o:dell:powerscale_onefs:*:*:*:*:*:*:*:*

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