CVE-2021-21526

MEDIUMNVD 6.06.7▲

6.0

Dell PowerScale OneFS 8.1.0 - 9.1.0 contains a privilege escalation in SmartLock compliance mode that may allow compadmin to execute arbitrary commands as root.

CVSS v3: 6.0
EG Score: 6.7(medium)
EPSS: 8.3%
KEV: Not listed

Published

April 20, 2021

Last Modified

February 20, 2026

References (2)

security_alert@emchttps://www.dell.com/support/kbdoc/000185202
af854a3a-2127-422b-91ae-364da2661108https://www.dell.com/support/kbdoc/000185202

Weakness Classification(1)

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

CWE-78OS Command Injection

Data Freshness Timeline

(refreshed 14× 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.

2026-06-05 22:45 UTCepss_batch
2026-06-05 22:45 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-05 06:09 UTCepss_batch
2026-06-05 06:08 UTCepss_batch
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 18:06 UTCEG score recompute
2026-05-26 18:06 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-21526?

CVE-2021-21526 is a medium vulnerability published on April 20, 2021. Dell PowerScale OneFS 8.1.0 - 9.1.0 contains a privilege escalation in SmartLock compliance mode that may allow compadmin to execute arbitrary commands as root.

When was CVE-2021-21526 disclosed?

CVE-2021-21526 was first published in the National Vulnerability Database on April 20, 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-2021-21526 actively exploited?

CVE-2021-21526 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 8.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-21526?

CVE-2021-21526 has a CVSS v3 base score of 6.0 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 6.7.

How do I remediate CVE-2021-21526?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-21526, 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.

Dependency Blast Radius

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CVE-2021-21526

📅 Published

🔄 Last Modified

🔗 References (2)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-21526?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (2)

Frequently asked(5)

Related CVEs(same CWE)