Is CVE-2018-4344 in the CISA KEV catalog?

Yes. CVE-2018-4344 is on the CISA Known Exploited Vulnerabilities list, added 2022-06-27.

What is the CVSS severity of CVE-2018-4344?

CVE-2018-4344 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2018-4344?

CVE-2018-4344 has an EPSS score of 2.92% (85th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2018-4344

HIGHCISA KEVEPSS 85th pctl

7.8

CVSS v3

NVD

Description

A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12, macOS Mojave 10.14, tvOS 12, watchOS 5.

CWE-119Buffer Overflow

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.92%probability of exploitation in 30 days

85thpercentile

Elevated risk: more likely to be exploited than 85% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Apple Multiple Products Memory Corruption Vulnerability

Apple iOS, macOS, tvOS, and watchOS contain a memory corruption vulnerability which can allow for code execution.

Apply updates per vendor instructions.

Remediation due: 2022-07-18

References

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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 2025-10-23.