CVE-2021-30818

HIGH

iOS <14.8-15 - RCE

Title source: llm
STIX 2.1

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.

References (7)

Core 7
Core References
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212807
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212814
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212819
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212815
Release Notes, Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212816
Vendor Advisory x_refsource_confirm
https://support.apple.com/kb/HT212869
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/12/20/6

Scores

CVSS v3 8.8
EPSS 0.0043
EPSS Percentile 62.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-843
Status published
Products (6)
apple/ipados < 14.8
apple/iphone_os < 14.8
apple/macos < 12.0.1
apple/safari < 15.0
apple/tvos < 15.0
apple/watchos < 8.0
Published Oct 28, 2021
Tracked Since Feb 18, 2026