CVE-2020-3837

HighCVSS 7.8/10Known exploited (CISA KEV)Last modified Jun 17, 2026

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. An application may be able to execute arbitrary code with kernel privileges.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

VendorProductVersions
AppleiOS>= unspecified, < iOS 13.3.1 and iPadOS 13.3.1
ApplemacOS>= unspecified, < macOS Catalina 10.15.3
AppletvOS>= unspecified, < tvOS 13.3.1
ApplewatchOS>= unspecified, < watchOS 6.1.2

References

Timeline

Published
Feb 27, 2020
Last modified
Jun 17, 2026
Added to CISA KEV
Jun 27, 2022
NVD status
Analyzed

Related CVEs from 2020

CVE-2020-38387.8The issue was addressed with improved permissions logic. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 1CVE-2020-38395.5A validation issue was addressed with improved input sanitization. This issue is fixed in macOS Catalina 10.15.3. An application may be ableCVE-2020-38407.8An off by one issue existed in the handling of racoon configuration files. This issue was addressed through improved bounds checking. This iCVE-2020-38416.5The issue was addressed with improved UI handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, Safari 13.0.5. A local user may unknCVE-2020-38427.8A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 1CVE-2020-38438.8A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 12.4.7, watchOS 5.3.7. A remote attacker CVE-2020-38443.3This issue was addressed with improved checks. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1. Users removed from an iMessage conversatCVE-2020-38457.8A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.3. An application may be CVE-2020-38468.8A buffer overflow was addressed with improved size validation. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, CVE-2020-38479.8An out-of-bounds read was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3. A remote attacker may be CVE-2020-38489.8A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3. A remote attacker mayCVE-2020-38499.8A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.3. A remote attacker may
CVE-2020-3837: High severity, CVSS 7.8 | Vulnix