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CVE-2021-1789

nvd nist
Published: Apr 2, 2021Modified: Oct 23, 2025CISA KEV

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8.8
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability: 2.8 / Impact: 5.9
Source: NVD

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.

Affected (26)

Apple
6 products
Ipados
Iphone Os
Mac Os X
Macos
Tvos
Watchos
Fedoraproject
1 product
Fedora
Webkitgtk
1 product
Webkitgtk
Configuration A
23 vulnerable
Vulnerable SoftwareAffected Versions
Ipados
Before 14.4
Iphone Os
Before 14.4
Apple
Mac Os X
From 10.14 to 10.14.6
Mac Os X
From 10.15 to 10.15.7
Mac Os X
Version 10.14.6
Mac Os X
Version 10.14.6 security_update_2019-004
Mac Os X
Version 10.14.6 security_update_2019-005
Mac Os X
Version 10.14.6 security_update_2019-006
Mac Os X
Version 10.14.6 security_update_2019-007
Mac Os X
Version 10.14.6 security_update_2020-001
Mac Os X
Version 10.14.6 security_update_2020-002
Mac Os X
Version 10.14.6 security_update_2020-003
Mac Os X
Version 10.14.6 security_update_2020-004
Mac Os X
Version 10.14.6 security_update_2020-005
Mac Os X
Version 10.14.6 security_update_2020-006
Mac Os X
Version 10.14.6 security_update_2020-007
Mac Os X
Version 10.14.6 supplemental_update
Mac Os X
Version 10.14.6 supplemental_update_2
Mac Os X
Version 10.15.7
Mac Os X
Version 10.15.7 supplemental_update
Macos
From 11.0 to 11.2
Tvos
Before 14.4
Watchos
Before 7.3
Configuration B
2 vulnerable
Vulnerable SoftwareAffected Versions
Fedoraproject
Fedora
Version 32
Fedora
Version 33
Configuration C
1 vulnerable
Vulnerable SoftwareAffected Versions
Webkitgtk
Before 2.30.6

Related CWEs

CWE-843
Access of Resource Using Incompatible Type ('Type Confusion')
The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

References (17)

Source: product-security@apple.com
Broken LinkMailing List
Source: product-security@apple.com
Broken LinkMailing List
Source: product-security@apple.com
Third Party Advisory
Source: product-security@apple.com
Release NotesVendor Advisory
Source: product-security@apple.com
Release NotesVendor Advisory
Source: product-security@apple.com
Release NotesVendor Advisory
Source: product-security@apple.com
Release NotesVendor Advisory
Source: product-security@apple.com
Release NotesVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Broken LinkMailing List
Source: af854a3a-2127-422b-91ae-364da2661108
Broken LinkMailing List
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Release NotesVendor Advisory
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

Timeline

No history available yet.