CVE-2021-1844
HIGHSafari < 14.0.3 - Remote Code Execution via Malicious Web Content
Title source: llmDescription
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
Mailing List, Third Party Advisory vendor-advisory
x_refsource_fedora
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/
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