CVE-2020-9991
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Apple Icloud
PublishedDec 8, 2020
First seenDec 8, 2020
How to fix
Update
- apple icloud7.21, 11.4 or later
- apple ipados14.0 or later
- apple iphone_os14.0 or later
- apple mac_os_x11.0.1 or later
- apple tvos14.0 or later
- apple watchos7.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple icloud | v < 7.21, 11.0 ≤ v < 11.4 | 7.21, 11.4 |
| apple ipados | v < 14.0 | 14.0 |
| apple iphone_os | v < 14.0 | 14.0 |
| apple mac_os_x | v < 11.0.1 | 11.0.1 |
| apple tvos | v < 14.0 | 14.0 |
| apple watchos | v < 7.0 | 7.0 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.