What is CVE-2019-8642?

CVE-2019-8642 is a low-severity vulnerability in Apple macOS, classified under Improper Certificate Validation. CVSS score: 3.3/10. Published 2020-10-27.

How severe is CVE-2019-8642?

Low severity. CVSS v3 base score is 3.3 out of 10.

Vulnerability in Apple macOS

CVE-2019-8642

An issue existed in the handling of S-MIME certificates. This issue was addressed with improved validation of S-MIME certificates. This issue is fixed in macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra. Processing a maliciously crafted mail message may lead to S/MIME signature spoofing.

Vulnerability class: Improper Certificate Validation

EPSS: 0.003 (24.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

Apple Macos — versions unspecified
Apple Mac_os_x

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

product-security@apple.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2019-8642?: CVE-2019-8642 is a low-severity vulnerability in Apple macOS, classified under Improper Certificate Validation. CVSS score: 3.3/10. Published 2020-10-27.
How severe is CVE-2019-8642?: Low severity. CVSS v3 base score is 3.3 out of 10.