A memory corruption issue was addressed with improved memory handling.

published 2019-12-18 6y ago modified 2026-06-17 4mo ago also EUVD-2019-18197

cvss: 7.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.2%; EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits: 0; none known

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.1. An application may be able to execute arbitrary code with system privileges.

Patch / fix

fixed in 1

Apple macOS macOS Catalina 10.15.1

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Exploit prediction

1.24% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.8	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD	2.0	9.3	AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

Apple macOS

Classification

Weakness

CWE-787 Out-of-bounds Write

References

support.apple.com /HT210722
vendor-advisory

Sources

CVE List CVE-2019-8807
NVD CVE-2019-8807

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