A denial of service issue was addressed with improved validation.

published 2020-10-27 6y ago modified 2026-06-17 4mo ago also EUVD-2019-18127

cvss: 6.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 58%
public exploits: 0; none known

A denial of service issue was addressed with improved validation. This issue is fixed in macOS Catalina 10.15.1, Security Update 2019-001, and Security Update 2019-006, macOS Catalina 10.15. An attacker in a privileged position may be able to perform a denial of service attack.

Patch / fix

fixed in 1

Apple macOS 10.15

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Exploit prediction

0.87% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.5	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected products

Apple macOS

Classification

Weakness

CWE-20 Improper Input Validation

References

support.apple.com /en-us/HT210634
vendor-advisory
support.apple.com /en-us/HT210722
vendor-advisory

Sources

CVE List CVE-2019-8737
NVD CVE-2019-8737

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