CVE-2020-3856

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

A memory corruption issue was addressed with improved input validation. 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. Processing a maliciously crafted string may lead to heap corruption.

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-20CWE-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
NVD status
Modified

Related CVEs from 2020

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CVE-2020-3856: High severity, CVSS 7.8 | Vulnix