CVE-2021-1844

HIGH

Safari < 14.0.3 - Remote Code Execution via Malicious Web Content

Title source: llm
STIX 2.1

Description

A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 14.4.1 and iPadOS 14.4.1, Safari 14.0.3 (v. 14610.4.3.1.7 and 15610.4.3.1.7), watchOS 7.3.2, macOS Big Sur 11.2.3. Processing maliciously crafted web content may lead to arbitrary code execution.

References (8)

Core 8
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212220
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212221
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212222
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212223
Vendor Advisory x_refsource_confirm
https://support.apple.com/kb/HT212323
Mailing List, Third Party Advisory mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2021/Apr/55
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2021/dsa-4923

Scores

CVSS v3 8.8
EPSS 0.0237
EPSS Percentile 81.8%
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 (8)
apple/ipados < 14.4.1
apple/iphone_os < 14.4.1
apple/macos < 11.2.3
apple/safari < 14.0.3
apple/tvos < 14.5
apple/watchos < 7.3.2
debian/debian_linux 10.0
fedoraproject/fedora 33
Published Apr 02, 2021
Tracked Since Feb 18, 2026