Is CVE-2021-30715 in the CISA KEV catalog?

No. CVE-2021-30715 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-30715?

CVE-2021-30715 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-30715?

CVE-2021-30715 has an EPSS score of 1.71% (75th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-30715?

Upgrade ipados to 14.6 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2021-30715

HIGHEPSS 75th pctl

7.5

CVSS v3

NVD

Description

A logic issue was addressed with improved state management. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Security Update 2021-003 Catalina, macOS Big Sur 11.4, watchOS 7.5. Processing a maliciously crafted message may lead to a denial of service.

How to fix

Remediation Available

ipadosNVD

Affected:< 14.6Fixed in:14.6CVE-2021-30715derived from NVD

iphone osNVD

Affected:< 14.6Fixed in:14.6CVE-2021-30715derived from NVD

macosNVD

Affected:>= 11.0, < 11.4Fixed in:11.4CVE-2021-30715derived from NVD

tvosNVD

Affected:< 14.6Fixed in:14.6CVE-2021-30715derived from NVD

watchosNVD

Affected:< 7.5Fixed in:7.5CVE-2021-30715derived 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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.71%probability of exploitation in 30 days

75thpercentile

Elevated risk: more likely to be exploited than 75% of all known CVEs.

References

Vendor Advisory5

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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.