Is CVE-2018-4390 in the CISA KEV catalog?

No. CVE-2018-4390 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-4390?

CVE-2018-4390 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2018-4390?

CVE-2018-4390 has an EPSS score of 0.85% (54th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-4390?

Upgrade iphone os to 12.1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2018-4390

MEDIUM

5.5

CVSS v3

NVD

Description

An inconsistent user interface issue was addressed with improved state management. This issue is fixed in macOS High Sierra 10.13.1, Security Update 2017-001 Sierra, and Security Update 2017-004 El Capitan, watchOS 4.3, iOS 12.1. Processing a maliciously crafted text message may lead to UI spoofing.

How to fix

Remediation Available

iphone osNVD

Affected:< 12.1Fixed in:12.1CVE-2018-4390derived from NVD

mac os xNVD

Affected:>= 10.13, < 10.13.1Fixed in:10.13.1CVE-2018-4390derived from NVD

watchosNVD

Affected:< 4.3Fixed in:4.3CVE-2018-4390derived 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

ConfidentialityNone

IntegrityHigh

AvailabilityNone

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

Exploit Intelligence

0.85%probability of exploitation in 30 days

54thpercentile

Moderate risk: more likely to be exploited than 54% 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.