CVE-2020-9819

MediumCVSS 4.3/10Known exploited (CISA KEV)Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Weakness enumeration

CWE-787

Affected software

No affected versions have been published.

Timeline

Published
Jun 9, 2020
Last modified
Jun 17, 2026
Added to CISA KEV
Nov 3, 2021
NVD status
Analyzed

Related CVEs from 2020

CVE-2020-98207.5A logic issue was addressed with improved restrictions. This issue is fixed in iOS 13.5 and iPadOS 13.5. A remote attacker may be able to moCVE-2020-98217.8A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.1CVE-2020-98227.8An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.5. A malicious applicaCVE-2020-98237.5This issue was addressed with improved checks. This issue is fixed in iOS 13.5 and iPadOS 13.5. Users removed from an iMessage conversation CVE-2020-98247.5A logic issue was addressed with improved restrictions. This issue is fixed in macOS Catalina 10.15.5. A non-privileged user may be able to CVE-2020-98257.8An access issue was addressed with additional sandbox restrictions. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5.CVE-2020-98267.5A denial of service issue was addressed with improved input validation. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.1CVE-2020-98277.5A denial of service issue was addressed with improved input validation. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.1CVE-2020-98287.5An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.4. A remote attacker may be CVE-2020-98296.5A validation issue was addressed with improved input sanitization. This issue is fixed in iOS 13.5 and iPadOS 13.5, tvOS 13.4.5, watchOS 6.2CVE-2020-98307.8A memory corruption issue was addressed with improved state management. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.1CVE-2020-98315.5An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Catalina 10.15.5. A malicious application ma
CVE-2020-9819: Medium severity, CVSS 4.3 | Vulnix