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CVE-2020-9991

nvd nist
Published: Dec 8, 2020Modified: Jun 17, 2026

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7.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

This issue was addressed with improved checks. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.0, iOS 14.0 and iPadOS 14.0, iCloud for Windows 7.21, tvOS 14.0. A remote attacker may be able to cause a denial of service.

Affected (7)

Apple
6 products
Icloud
Ipados
Iphone Os
Mac Os X
Tvos
Watchos
Configuration A
7 vulnerable
Vulnerable SoftwareAffected Versions
Apple
Icloud
Before 7.21
Icloud
From 11.0 to 11.4
Ipados
Before 14.0
Iphone Os
Before 14.0
Mac Os X
Before 11.0.1
Tvos
Before 14.0
Watchos
Before 7.0

References (16)

Source: product-security@apple.com
Mailing ListThird Party Advisory
Source: product-security@apple.com
Source: product-security@apple.com
Vendor Advisory
Source: product-security@apple.com
Vendor Advisory
Source: product-security@apple.com
Vendor Advisory
Source: product-security@apple.com
Vendor Advisory
Source: product-security@apple.com
Vendor Advisory
Source: product-security@apple.com
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

Timeline

No history available yet.