CVE-2021-21575

MEDIUMNVD 5.95.9—

5.9

Dell BSAFE Micro Edition Suite, versions before 4.5.2, contain an Observable Timing Discrepancy Vulnerability.

CVSS v3: 5.9
EG Score: 5.9(medium)
EPSS: 25.9%
KEV: Not listed

Published

February 2, 2024

Last Modified

November 21, 2024

References (2)

security_alert@emchttps://www.dell.com/support/kbdoc/en-us/000189462/dsa-2021-131-dell-bsafetm-micro-edition-suite-multiple-vulnerabilities
af854a3a-2127-422b-91ae-364da2661108https://www.dell.com/support/kbdoc/en-us/000189462/dsa-2021-131-dell-bsafetm-micro-edition-suite-multiple-vulnerabilities

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 8× 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.

2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 16:49 UTCepss_batch
2026-05-24 09:15 UTCEG score recompute
2026-05-24 09:15 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2021-21575?

CVE-2021-21575 is a medium vulnerability published on February 2, 2024. Dell BSAFE Micro Edition Suite, versions before 4.5.2, contain an Observable Timing Discrepancy Vulnerability.

When was CVE-2021-21575 disclosed?

CVE-2021-21575 was first published in the National Vulnerability Database on February 2, 2024, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-21575 actively exploited?

CVE-2021-21575 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 25.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-21575?

CVE-2021-21575 has a CVSS v3 base score of 5.9 (NVD).

How do I remediate CVE-2021-21575?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-21575, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-21575

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Is Your Infrastructure Affected by CVE-2021-21575?

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CVE-2021-21575

📅 Published

🔄 Last Modified

🔗 References (2)