Is CVE-2021-30684 in the CISA KEV catalog?

No. CVE-2021-30684 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-30684?

CVE-2021-30684 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-30684?

CVE-2021-30684 has an EPSS score of 1.46% (70th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-30684?

Upgrade macos to 11.4 or later.

CVE & CISA-KEV Catalog

CVE-2021-30684

HIGHEPSS 70th pctl

7.8

CVSS v3

NVD

Description

A logic issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina. A remote attacker may cause an unexpected application termination or arbitrary code execution.

How to fix

Remediation Available

macosNVD

Affected:>= 11.0, < 11.4Fixed in:11.4CVE-2021-30684derived 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

1.46%probability of exploitation in 30 days

70thpercentile

Elevated risk: more likely to be exploited than 70% of all known CVEs.

References

Vendor Advisory2

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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.