A memory consumption issue was addressed with improved memory handling. This issue is fixed in iOS 13.5 and iPadOS 13.5, iOS 12.4.7, watchOS 6.2.5, watchOS 5.3.7. Processing a maliciously crafted mail message may lead to heap corruption.
https://www.tenable.com/blog/cve-2020-9818-cve-2020-9819-multiple-zero-day-vulnerabilities-in-ios-mail-app-exploited-in-wild
https://www.tenable.com/blog/multiple-zero-day-vulnerabilities-in-ios-mail-app-exploited-in-the-wild
https://support.apple.com/HT211176
https://support.apple.com/HT211175
https://support.apple.com/HT211169
https://support.apple.com/HT211168
Source: Mitre, NVD
Published: 2020-06-09
Updated: 2025-02-28
Known Exploited Vulnerability (KEV)
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P
Severity: Medium
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
EPSS: 0.00446