CVE-2019-8645

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.

• https://support.apple.com/en-us/HT209600Vendor Advisory
• https://support.apple.com/en-us/HT209600Vendor Advisory

Published

Oct 27, 2020

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2019-8639Multiple memory corruption issues were addressed with improv…8.8
• CVE-2019-8640A logic issue was addressed with improved validation. This i…7.5
• CVE-2019-8641An out-of-bounds read was addressed with improved input vali…9.8
• CVE-2019-8642An issue existed in the handling of S-MIME certificates. Thi…3.3
• CVE-2019-8643CVE-2019-8643: Arun Sharma of VMWare This issue is fixed in …9.8
• CVE-2019-8644Multiple memory corruption issues were addressed with improv…8.8
• CVE-2019-8646An out-of-bounds read was addressed with improved input vali…7.5
• CVE-2019-8647A use after free issue was addressed with improved memory ma…9.8
• CVE-2019-8648A memory corruption issue was addressed with improved input …9.8
• CVE-2019-8649A logic issue existed in the handling of synchronous page lo…6.1
• CVE-2019-8654An inconsistent user interface issue was addressed with impr…6.5
• CVE-2019-8656This was addressed with additional checks by Gatekeeper on f…5.5