How severe is CVE-2020-5371?

CVE-2020-5371 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-5371 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-5371?

CVE-2020-5371 primarily affects Dell Emc Isilon Onefs. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-5371?

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-2020-5371 published?

CVE-2020-5371 was published on 2020-07-06 and last updated on 2026-06-17.

CVE-2020-5371

CVE-2020-5371 is a high-severity vulnerability in Dell Emc Isilon Onefs with a CVSS 3.x base score of 8.0. 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-732.

Key facts

Severity: High (CVSS 3.x base score 8.0)
CVSS v2: 6.5
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Dell Emc Isilon Onefs
Published: 2020-07-06
Last modified: 2026-06-17

Description

Dell EMC Isilon OneFS versions 8.2.2 and earlier and Dell EMC PowerScale version 9.0.0 contain a file permissions vulnerability. An attacker, with network or local file access, could take advantage of insufficiently applied file permissions or gain unauthorized access to files.

Frequently asked questions

What is CVE-2020-5371?: Dell EMC Isilon OneFS versions 8.2.2 and earlier and Dell EMC PowerScale version 9.0.0 contain a file permissions vulnerability. An attacker, with network or local file access, could take advantage of insufficiently applied file permissions or gain unauthorized access to files.
How severe is CVE-2020-5371?: CVE-2020-5371 has a CVSS 3.x base score of 8.0, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-5371 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-5371?: CVE-2020-5371 primarily affects Dell Emc Isilon Onefs. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-5371?: 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-2020-5371 published?: CVE-2020-5371 was published on 2020-07-06 and last updated on 2026-06-17.

References

https://www.dell.com/support/security/en-us/details/544593/DSA-2020-155-Dell-EMC-Isilon-OneFS-and-Dell-EMC-PowerScale-Security-Update-for-a-Permissions-Vuln

Affected products (2)

cpe:2.3:a:dell:emc_isilon_onefs:*:*:*:*:*:*:*:*
cpe:2.3:o:dell:emc_powerscale_onefs:9.0.0:*:*:*:*:*:*:*

More vulnerabilities in Dell Emc Isilon Onefs

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CVE-2020-5353 — High (CVSS 8.8): The Dell Isilon OneFS versions 8.2.2 and earlier and Dell EMC PowerScale OneFS version 9.0.0 default configuration for…
CVE-2020-5369 — High (CVSS 8.8): Dell EMC Isilon OneFS versions 8.2.2 and earlier and Dell EMC PowerScale OneFS version 9.0.0 contain a privilege…
CVE-2018-1213 — High (CVSS 8.8): Dell EMC Isilon OneFS versions between 8.1.0.0 - 8.1.0.1, 8.0.1.0 - 8.0.1.2, and 8.0.0.0 - 8.0.0.6, versions 7.2.1.x,…
CVE-2020-5318 — High (CVSS 7.5): Dell EMC Isilon OneFS versions 8.1.2, 8.1.0.4, 8.1.0.3, and 8.0.0.7 contain a vulnerability in some configurations. An…
CVE-2020-26181 — High (CVSS 7.0): Dell EMC Isilon OneFS versions 8.1 and later and Dell EMC PowerScale OneFS version 9.0.0 contain a privilege escalation…

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