CVE-2021-1857

MEDIUM

Apple Icloud < 12.3 - 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 iTunes 12.11.3 for Windows, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iCloud for Windows 12.3, macOS Big Sur 11.3, watchOS 7.4, tvOS 14.5, iOS 14.5 and iPadOS 14.5. Processing maliciously crafted web content may disclose sensitive user information.

Scores

CVSS v3 6.5
EPSS 0.0060
EPSS Percentile 69.7%
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 (23)
apple/icloud < 12.3
apple/ipados < 14.5
apple/iphone_os < 14.5
apple/itunes < 12.11.3
apple/mac_os_x 10.14
apple/mac_os_x 10.14.0
apple/mac_os_x 10.14.1
apple/mac_os_x 10.14.2
apple/mac_os_x 10.14.3
apple/mac_os_x 10.14.4 (2 CPE variants)
... and 13 more
Published Sep 08, 2021
Tracked Since Feb 18, 2026