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Vulnerability record · CVE-2018-4243 · published 8 June 2018

CVE-2018-4243: Apple tv memory buffer overflow vulnerability

Apple · Apple Tv

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 the "Kernel" component. A buffer overflow in getvolattrlist allows attackers to execute arbitrary code in a privileged context via a crafted app.

7.8 CVSS 3.0 High EPSS 19% · top 2.8% CWE-119 · Memory buffer overflow
7.8CVSS 3.0 base score, v2 9.3
19%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
14References, 4 tagged exploit
17 Jun 2026Last modified by 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 the "Kernel" component. A buffer overflow in getvolattrlist allows attackers to execute arbitrary code in a privileged context via a crafted app.

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securitytracker.com/id/1041027 Third Party AdvisoryVDB Entry
https://bugs.chromium.org/p/project-zero/issues/detail?id=1564 ExploitIssue TrackingThird Party Advisory
https://support.apple.com/HT208848 Vendor Advisory
https://support.apple.com/HT208849 Vendor Advisory
https://support.apple.com/HT208850 Vendor Advisory
https://support.apple.com/HT208851 Vendor Advisory
https://www.exploit-db.com/exploits/44848/ ExploitThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041027 Third Party AdvisoryVDB Entry
https://bugs.chromium.org/p/project-zero/issues/detail?id=1564 ExploitIssue TrackingThird Party Advisory
https://support.apple.com/HT208848 Vendor Advisory
https://support.apple.com/HT208849 Vendor Advisory
https://support.apple.com/HT208850 Vendor Advisory
https://support.apple.com/HT208851 Vendor Advisory
https://www.exploit-db.com/exploits/44848/ ExploitThird Party AdvisoryVDB Entry

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-4243), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.