HIGH

CVE-2018-4249

CVSS v3

7.8

HIGH

EPSS Score

2.1 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2018-4249 yet.

Full record on NVD

Description

An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves pktmnglr_ipfilter_input in com.apple.packet-mangler in the "Kernel" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (integer overflow and stack-based buffer overflow) via a crafted app.

Technical details

Published: 2018-06-08

Frequently asked questions

What is CVE-2018-4249?

Is CVE-2018-4249 actively exploited?

Active exploitation of CVE-2018-4249 has not been confirmed. Its EPSS score was 2.1% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-4249?

CVE-2018-4249 has a CVSS v3 base score of 7.8 (HIGH severity).

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