CVE-2020-9818

high

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 13.5 and iPadOS 13.5, iOS 12.4.7, watchOS 6.2.5. Processing a maliciously crafted mail message may lead to unexpected memory modification or application termination.

References

Tenable Blogs
More

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/HT211175

https://support.apple.com/HT211169

https://support.apple.com/HT211168

Details

Source: Mitre, NVD

Published: 2020-06-09

Updated: 2025-02-28

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00561