CVE-2021-1820

MEDIUM

Apple Ipados < 14.5 - Denial of Service

Title source: rule
STIX 2.1

Description

A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may result in the disclosure of process memory.

Scores

CVSS v3 6.5
EPSS 0.0077
EPSS Percentile 73.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Details

CWE
CWE-665
Status published
Products (5)
apple/ipados < 14.5
apple/iphone_os < 14.5
apple/macos 11.0 - 11.3
apple/tvos < 14.5
apple/watchos < 7.4
Published Sep 08, 2021
Tracked Since Feb 18, 2026