CVE-2021-30846

HIGH

Safari < 15.0 - Remote Code Execution via Malicious Web Content

Title source: llm
STIX 2.1

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, Safari 15, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Processing maliciously crafted web content may lead to arbitrary code execution.

References (18)

Core 18
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212807
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212814
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212819
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212815
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212816
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/10/26/9
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/10/27/1
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/10/27/2
Mailing List, Third Party Advisory mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2021/Oct/60
Mailing List, Third Party Advisory mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2021/Oct/62
Mailing List, Third Party Advisory mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2021/Oct/63
Mailing List, Third Party Advisory mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2021/Oct/61
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/10/27/4
Vendor Advisory x_refsource_confirm
https://support.apple.com/kb/HT212869
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2021/dsa-4995
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2021/dsa-4996

Scores

CVSS v3 7.8
EPSS 0.0042
EPSS Percentile 62.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (10)
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
debian/debian_linux 10.0
debian/debian_linux 11.0
fedoraproject/fedora 33
fedoraproject/fedora 34
Published Oct 19, 2021
Tracked Since Feb 18, 2026