What’s Vulnerable › Vulnerabilities
CVE-2019-8645
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.8% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-10-27 · updated 2026-06-17
Description
An issue existed in the handling of encrypted Mail. This issue was addressed with improved isolation of MIME in Mail. This issue is fixed in macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra. An attacker in a privileged network position may be able to intercept the contents of S/MIME-encrypted e-mail.
Affected products
- macOS: before 10.14.4 — fixed in 10.14.4
How to fix
Upgrade to a fixed version: macOS 10.14.4. Check the vendor advisory for mitigations.
References
Get alerted when CVE-2019-8645 or the next vulnerability affects your stack