Is CVE-2021-30943 in the CISA KEV catalog?

No. CVE-2021-30943 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-30943?

CVE-2021-30943 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2021-30943?

CVE-2021-30943 has an EPSS score of 0.79% (52th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-30943?

Upgrade ipados to 15.2 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2021-30943

MEDIUM

4.3

CVSS v3

NVD

Description

An issue in the handling of group membership was resolved with improved logic. This issue is fixed in iOS 15.2 and iPadOS 15.2, watchOS 8.3, macOS Monterey 12.1. A malicious user may be able to leave a messages group but continue to receive messages in that group.

CWE-613

How to fix

Remediation Available

ipadosNVD

Affected:< 15.2Fixed in:15.2CVE-2021-30943derived from NVD

iphone osNVD

Affected:< 15.2Fixed in:15.2CVE-2021-30943derived from NVD

macosNVD

Affected:>= 12.0.0, < 12.1Fixed in:12.1CVE-2021-30943derived from NVD

watchosNVD

Affected:< 8.3Fixed in:8.3CVE-2021-30943derived 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 RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.79%probability of exploitation in 30 days

52ndpercentile

Moderate risk: more likely to be exploited than 52% of all known CVEs.

References

Other references3

Related Vulnerabilities

Other CWE-613 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-2595	Critical	9.8	17%	-	-
CVE-2023-30403	High	7.5	15%	-	-
CVE-2020-27422	Critical	9.8	7.8%	-	-
CVE-2014-3616	Medium	4.3	5.7%	-	Fix
CVE-2021-3144	Critical	9.1	5.2%	-	Fix
CVE-2021-24019	High	8.1	3.8%	-	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.