CVE-2020-9819

State: Published
Severity: 4.3 Medium
Published: Jun 9, 2020
Updated: Dec 20, 2025
Reserved: Mar 2, 2020

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L	CISA-ADP

Weaknesses

CWE-787 Out-of-bounds Write

Affected Products

Product	Versions
iOSApple	before iOS 13.5 and iPadOS 13.5Affected
iOS-1Apple	before iOS 12.4.7Affected
watchOSApple	before watchOS 6.2.5Affected
watchOS-1Apple	before watchOS 5.3.7Affected

References

https://support.apple.com/HT211168
https://support.apple.com/HT211175
https://support.apple.com/HT211169
https://support.apple.com/HT211176
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-9819government-resource

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.