HIGH · 7.5

CVE-2020-9991

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 ...

Vulnerability 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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH

Affected Products

VendorProductVersions
AppleIcloud< 7.21
AppleIpados< 14.0
AppleIphone Os< 14.0
AppleMac Os X< 11.0.1
AppleTvos< 14.0
AppleWatchos< 7.0

References

FAQ

What is CVE-2020-9991?

CVE-2020-9991 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 ...

How severe is CVE-2020-9991?

CVE-2020-9991 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2020-9991?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Icloud, Apple Ipados, Apple Iphone Os, Apple Mac Os X, Apple Tvos.