VULNERABILITY INTELLIGENCE

CVE-2021-1844

CVSS score8.8 HIGH

EPSS probability2.38%

CISA KEVNot currently listed

Published2021-04-02

Last modified2026-06-17

Description

A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 14.4.1 and iPadOS 14.4.1, Safari 14.0.3 (v. 14610.4.3.1.7 and 15610.4.3.1.7), watchOS 7.3.2, macOS Big Sur 11.2.3. Processing maliciously crafted web content may lead to arbitrary code execution.