Is CVE-2018-4284 in the CISA KEV catalog?

No. CVE-2018-4284 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-4284?

CVE-2018-4284 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2018-4284?

CVE-2018-4284 has an EPSS score of 1.58% (73th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-4284?

Upgrade webkit2gtk on debian 11 to 2.20.4-1 or later. Fixes are available for 7 affected products.

CVE & CISA-KEV Catalog

CVE-2018-4284

HIGHEPSS 73th pctl

8.8

CVSS v3

NVD

Description

A type confusion issue was addressed with improved memory handling. This issue affected versions prior to iOS 11.4.1, tvOS 11.4.1, watchOS 4.3.2, Safari 11.1.2, iTunes 12.8 for Windows, iCloud for Windows 7.6.

CWE-704

How to fix

Remediation Available

webkit2gtkDebian

Fixed in:2.20.4-1CVE-2018-4284

libjavascriptcoregtk-4.0-18Ubuntu

Fixed in:2.20.5-0ubuntu0.16.04.1USN-3743-1

Fixed in:2.20.5-0ubuntu0.18.04.1USN-3743-1

libwebkit2gtk-4.0-37Ubuntu

Fixed in:2.20.5-0ubuntu0.16.04.1USN-3743-1

Fixed in:2.20.5-0ubuntu0.18.04.1USN-3743-1

webkit2gtkUbuntu

Fixed in:2.20.5-0ubuntu0.16.04.1USN-3743-1

Fixed in:2.20.5-0ubuntu0.18.04.1USN-3743-1

SafariWindows application

Affected:11.1.2Fixed in:11.1.2Apple Inc.

iCloud (Legacy)Windows application

Affected:7.6Fixed in:7.6Apple Inc.

iTunesWindows application

Affected:12.8Fixed in:12.8Apple Inc.

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 InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

1.58%probability of exploitation in 30 days

73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

References

Vendor Advisory6

Related Vulnerabilities

Other CWE-704 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-41646	Critical	9.8	41%	-	Fix
CVE-2017-5115	High	8.8	26%	-	Fix
CVE-2018-12453	High	7.5	24%	-	Fix
CVE-2018-3843	High	8.8	24%	-	-
CVE-2017-3106	High	8.8	22%	-	-
CVE-2018-5007	High	8.8	18%	-	-

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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.