CVE-2021-30665
HighActively exploited (CISA KEV)
Description
A memory corruption issue was addressed with improved state management. This issue is fixed in watchOS 7.4.1, iOS 14.5.1 and iPadOS 14.5.1, tvOS 14.6, iOS 12.5.3, macOS Big Sur 11.3.1. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
SeverityHigh
CVSS8.8
Exploit probability—
Product
Apple Multiple Products
PublishedSep 8, 2021
First seenSep 8, 2021
Added to KEVNov 3, 2021
Weakness typeCWE-787Out-of-bounds write
How to fix
CISA required action
Apply updates per vendor instructions.
CISA due date: Nov 17, 2021Update
- apple ipados14.5.1 or later
- apple iphone_os12.5.3, 14.5.1 or later
- apple macos11.3.1 or later
- apple tvos14.6 or later
- apple watchos7.4.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| apple ipados | v < 14.5.1 | 14.5.1 |
| apple iphone_os | v < 12.5.3, 13.0 ≤ v < 14.5.1 | 12.5.3, 14.5.1 |
| apple macos | v < 11.3.1 | 11.3.1 |
| apple tvos | v < 14.6 | 14.6 |
| apple watchos | v < 7.4.1 | 7.4.1 |
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.