CVE-2021-21567

HIGHNVD 7.87.8—

7.8

Dell PowerScale OneFS 9.1.0.x contains an improper privilege management vulnerability. It may allow an authenticated user with ISI_PRIV_LOGIN_SSH and/or ISI_PRIV_LOGIN_CONSOLE to elevate privilege.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 12.4%
KEV: Not listed

Published

August 10, 2021

Last Modified

February 20, 2026

References (2)

security_alert@emchttps://www.dell.com/support/kbdoc/000189495
af854a3a-2127-422b-91ae-364da2661108https://www.dell.com/support/kbdoc/000189495

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:10 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-29 13:42 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-28 13:43 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 12:21 UTCEG score recompute
2026-05-26 12:21 UTCGHSA enrichment
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 20:42 UTCOSV refresh

Frequently asked(5)

What is CVE-2021-21567?

CVE-2021-21567 is a high vulnerability published on August 10, 2021. Dell PowerScale OneFS 9.1.0.x contains an improper privilege management vulnerability. It may allow an authenticated user with ISIPRIVLOGINSSH and/or ISIPRIVLOGINCONSOLE to elevate privilege.

When was CVE-2021-21567 disclosed?

CVE-2021-21567 was first published in the National Vulnerability Database on August 10, 2021, with the most recent update on February 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-21567 actively exploited?

CVE-2021-21567 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-21567?

CVE-2021-21567 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2021-21567?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-21567, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2021-21567

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(2)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-21567?

🔗 Related CVEs(same CWE)

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Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)