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Vulnerability record · CVE-2019-6209 · published 5 March 2019

CVE-2019-6209: Apple iphone os out-of-bounds read vulnerability

Apple · Iphone Os

An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in iOS 12.1.3, macOS Mojave 10.14.3, tvOS 12.1.2, watchOS 5.1.3. A malicious application may be able to determine kernel memory layout.

5.5 CVSS 3.0 Medium EPSS 3.7% · top 10.6% CWE-125 · Out-of-bounds read
5.5CVSS 3.0 base score, v2 4.3
3.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
12References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

An out-of-bounds read issue existed that led to the disclosure of kernel memory. This was addressed with improved input validation. This issue is fixed in iOS 12.1.3, macOS Mojave 10.14.3, tvOS 12.1.2, watchOS 5.1.3. A malicious application may be able to determine kernel memory layout.

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

Affected products

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

References

LinkTags
http://www.securityfocus.com/bid/106739 Third Party Advisory
https://support.apple.com/HT209443 Vendor Advisory
https://support.apple.com/HT209446 Vendor Advisory
https://support.apple.com/HT209447 Vendor Advisory
https://support.apple.com/HT209448 Vendor Advisory
https://www.exploit-db.com/exploits/46285/ ExploitThird Party Advisory
http://www.securityfocus.com/bid/106739 Third Party Advisory
https://support.apple.com/HT209443 Vendor Advisory
https://support.apple.com/HT209446 Vendor Advisory
https://support.apple.com/HT209447 Vendor Advisory
https://support.apple.com/HT209448 Vendor Advisory
https://www.exploit-db.com/exploits/46285/ ExploitThird Party Advisory

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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-2019-6209), CISA KEV, FIRST EPSS (scores of 2026-10-08). This page is refreshed as NVD updates the record.