CVE-2021-30772

HIGHNVD 7.87.8—

7.8

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.5. A malicious application may be able to gain root privileges.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 57.4%
KEV: Not listed

Published

September 8, 2021

Last Modified

November 21, 2024

References (6)

product-security@applehttps://support.apple.com/en-us/HT212602
product-security@applehttps://support.apple.com/kb/HT212600
product-security@applehttps://support.apple.com/kb/HT212603
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/en-us/HT212602
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT212600
af854a3a-2127-422b-91ae-364da2661108https://support.apple.com/kb/HT212603

Weakness Classification(1)

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

CWE-269Improper Privilege Management

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
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Frequently asked(5)

What is CVE-2021-30772?

CVE-2021-30772 is a high vulnerability published on September 8, 2021. This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.5. A malicious application may be able to gain root privileges.

When was CVE-2021-30772 disclosed?

CVE-2021-30772 was first published in the National Vulnerability Database on September 8, 2021, 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-2021-30772 actively exploited?

CVE-2021-30772 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 57.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-30772?

CVE-2021-30772 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2021-30772?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-30772, 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-2021-30772

📅 Published

🔄 Last Modified

🔗 References (6)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-30772?

🔗 Related CVEs(same CWE)

Same CWE

Published

Last Modified

References (6)

Frequently asked(5)

Related CVEs(same CWE)