Is CVE-2021-30927 in the CISA KEV catalog?

No. CVE-2021-30927 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-30927?

CVE-2021-30927 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-30927?

CVE-2021-30927 has an EPSS score of 0.35% (27th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-30927?

Upgrade ipados to 15.2 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2021-30927

HIGH

7.8

CVSS v3

NVD

Description

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. An application may be able to execute arbitrary code with kernel privileges.

CWE-416Use After Free

How to fix

Remediation Available

ipadosNVD

Affected:< 15.2Fixed in:15.2CVE-2021-30927derived from NVD

iphone osNVD

Affected:< 15.2Fixed in:15.2CVE-2021-30927derived from NVD

macosNVD

Affected:>= 12.0, < 12.1Fixed in:12.1CVE-2021-30927derived from NVD

tvosNVD

Affected:< 15.2Fixed in:15.2CVE-2021-30927derived from NVD

watchosNVD

Affected:< 8.3Fixed in:8.3CVE-2021-30927derived 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

0.35%probability of exploitation in 30 days

27thpercentile

Low risk: more likely to be exploited than 27% of all known CVEs.

References

Other references6

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	Fix

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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.