Is CVE-2021-30904 in the CISA KEV catalog?

No. CVE-2021-30904 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-30904?

CVE-2021-30904 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2021-30904?

CVE-2021-30904 has an EPSS score of 0.80% (52th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-30904?

Upgrade macos to 12.0.1 or later.

CVE & CISA-KEV Catalog

CVE-2021-30904

MEDIUM

5.3

CVSS v3

NVD

Description

A sync issue was addressed with improved state validation. This issue is fixed in macOS Monterey 12.0.1. A user's messages may continue to sync after the user has signed out of iMessage.

CWE-662

How to fix

Remediation Available

macosNVD

Affected:< 12.0.1Fixed in:12.0.1CVE-2021-30904derived 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

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.80%probability of exploitation in 30 days

52ndpercentile

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

References

Other references1

support.apple.com

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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.