CVE-2021-30851

HIGH

Safari < 15.0 - Remote Code Execution via Malicious Web Content

Title source: llm
STIX 2.1

Description

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

References (10)

Core 10
Core References
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
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-4996
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2021/dsa-4995
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2021/10/31/1

Scores

CVSS v3 8.8
EPSS 0.0077
EPSS Percentile 73.8%
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-787
Status published
Products (11)
apple/ipados < 15.0
apple/iphone_os < 15.0
apple/macos 12.0.1
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
... and 1 more
Published Aug 24, 2021
Tracked Since Feb 18, 2026