Is CVE-2021-30679 in the CISA KEV catalog?

No. CVE-2021-30679 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-30679?

CVE-2021-30679 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-30679?

CVE-2021-30679 has an EPSS score of 0.82% (53th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-30679?

Upgrade macos to 11.4 or later.

CVE & CISA-KEV Catalog

CVE-2021-30679

HIGH

7.8

CVSS v3

NVD

Description

This issue was addressed by removing the vulnerable code. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. An application may be able to gain elevated privileges.

How to fix

Remediation Available

macosNVD

Affected:>= 11.0, < 11.4Fixed in:11.4CVE-2021-30679derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

0.82%probability of exploitation in 30 days

53rdpercentile

Moderate risk: more likely to be exploited than 53% of all known CVEs.

References

Vendor Advisory3

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.