CVEvulnerability
CVE-2021-30818
8.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-10-28
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.8 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-843
Description
A type confusion issue was addressed with improved state handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, tvOS 15, iOS 15 and iPadOS 15, Safari 15, watchOS 8. Processing maliciously crafted web content may lead to arbitrary code execution.
Affected configurations
• apple safari (< 15.0)
• apple ipados (< 14.8)
• apple iphone os (< 14.8)
• apple macos (< 12.0.1)
• apple tvos (< 15.0)
• apple watchos (< 8.0)
Related
Weakness · CWE (1)
- CWE-843 Access of Resource Using Incompatible Type weakness
References
- http://www.openwall.com/lists/oss-security/2021/12/20/6 Mailing List, Third Party Advisory
- https://support.apple.com/en-us/HT212807 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212814 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212815 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212816 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212819 Release Notes, Vendor Advisory
- https://support.apple.com/kb/HT212869 Vendor Advisory
- http://www.openwall.com/lists/oss-security/2021/12/20/6 Mailing List, Third Party Advisory
- https://support.apple.com/en-us/HT212807 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212814 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212815 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212816 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT212819 Release Notes, Vendor Advisory
- https://support.apple.com/kb/HT212869 Vendor Advisory