CVE-2019-8642

LOW

macOS < 10.14.4 - S/MIME Signature Spoofing via Certificate Validation Issue

Title source: llm

Description

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.

References (1)

Core 1

Core References

Vendor Advisory x_refsource_misc

https://support.apple.com/en-us/HT209600

Scores

CVSS v3 3.3

EPSS 0.0031

EPSS Percentile 22.8%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Details

CWE

CWE-295

Status published

Products (1)

apple/mac_os_x < 10.14.4

Published Oct 27, 2020

Tracked Since Feb 18, 2026