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

VendorProductVersions
AppleiOS>= unspecified, < iOS 13.5 and iPadOS 13.5
AppleiOS-1>= unspecified, < iOS 12.4.7
ApplewatchOS>= unspecified, < watchOS 6.2.5
ApplewatchOS-1>= unspecified, < watchOS 5.3.7

References

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