CVE Database · CVE-2021-1789
CVSS v3.1
8.8
EPSS
14.54%
Published
Apr 2, 2021
Modified
Oct 23, 2025
CISA Known Exploited Vulnerability
Added: 2022-05-04 · Due: 2022-05-25
Apply updates per vendor instructions.
Public PoC / Exploit (1)
All weaponized →Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
Description
A type confusion issue was addressed with improved state handling. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution.
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HWeaknesses (CWE)
Affected Products (26)
References (17)