Vulnerabilities > CVE-2021-30858 - Use After Free vulnerability in multiple products

047910
CVSS 8.8 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
apple
fedoraproject
debian
CWE-416

Summary

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. 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.

Vulnerable Configurations

Part Description Count
OS
Apple
281
OS
Fedoraproject
2
OS
Debian
2

Common Weakness Enumeration (CWE)

References