Attacker Value
Unknown
CVE-2021-30858
CVE-2021-30858
(Last updated November 08, 2023) ▾
MITRE ATT&CK
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Description
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.
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CVSS V3 Severity and Metrics
Data provided by the National Vulnerability Database (NVD)
Base Score:
8.8 High
Impact Score:
5.9
Exploitability Score:
2.8
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
Required
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
General Information
Vendors
- apple,
- debian,
- fedoraproject
Products
- debian linux 10.0,
- debian linux 11.0,
- fedora 33,
- fedora 34,
- ipados,
- iphone os,
- macos
References
Advisory
