Is CVE-2019-8631 in the CISA KEV catalog?

No. CVE-2019-8631 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-8631?

CVE-2019-8631 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2019-8631?

CVE-2019-8631 has an EPSS score of 1.03% (60th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-8631?

Upgrade iphone os to 12.3 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2019-8631

HIGH

7.5

CVSS v3

NVD

Description

A logic issue was addressed with improved state management. This issue is fixed in macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra, iOS 12.3, tvOS 12.3. Users removed from an iMessage conversation may still be able to alter state.

How to fix

Remediation Available

iphone osNVD

Affected:< 12.3Fixed in:12.3CVE-2019-8631derived from NVD

mac os xNVD

Affected:< 10.14.5Fixed in:10.14.5CVE-2019-8631derived from NVD

tvosNVD

Affected:< 12.3Fixed in:12.3CVE-2019-8631derived 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

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

1.03%probability of exploitation in 30 days

60thpercentile

Moderate risk: more likely to be exploited than 60% of all known CVEs.

References

Vendor Advisory3

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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.