CVE-2020-9818

Published: Jun 9, 2020Modified: Oct 23, 2025CISA KEV

8.8

Vector

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

Exploitability: 2.8 / Impact: 5.9

Source: NVD

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.

Affected (4)

Products: Apple: Ipados, Iphone Os, Watchos

3 products

Configuration A

4 vulnerable

Vulnerable Software	Affected Versions
Apple Ipados	Before 13.5
Apple Iphone Os	Before 12.4.7
Apple Iphone Os	From 13.0 to 13.5
Apple Watchos	Before 6.2.5

Related CWEs

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

References (7)

https://support.apple.com/HT211168

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/HT211169

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/HT211175

Source: product-security@apple.com

Release NotesVendor Advisory

https://support.apple.com/HT211168

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesVendor Advisory

https://support.apple.com/HT211169

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesVendor Advisory

https://support.apple.com/HT211175

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesVendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-9818

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

US Government Resource

Timeline

No history available yet.