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CVE-2021-1789

HIGHCISA KEV

8.8

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.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published4/2/2021

Last Modified10/23/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorApple

ProductMultiple Products

Vulnerability NameApple Multiple Products Type Confusion Vulnerability

KEV Date Added2022-05-04

Remediation Due Date2022-05-25

Ransomware UseUnknown

Affected Products

apple:ipadosapple:iphone_osapple:mac_os_xapple:macosapple:tvosapple:watchosfedoraproject:fedorawebkitgtk:webkitgtk

Weaknesses (CWE)

CWE-843CWE-843

References

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/(product-security@apple.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/(product-security@apple.com)

https://security.gentoo.org/glsa/202104-03(product-security@apple.com)

https://support.apple.com/en-us/HT212146(product-security@apple.com)

https://support.apple.com/en-us/HT212147(product-security@apple.com)

https://support.apple.com/en-us/HT212148(product-security@apple.com)

https://support.apple.com/en-us/HT212149(product-security@apple.com)

https://support.apple.com/en-us/HT212152(product-security@apple.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/(af854a3a-2127-422b-91ae-364da2661108)

https://security.gentoo.org/glsa/202104-03(af854a3a-2127-422b-91ae-364da2661108)

https://support.apple.com/en-us/HT212146(af854a3a-2127-422b-91ae-364da2661108)

https://support.apple.com/en-us/HT212147(af854a3a-2127-422b-91ae-364da2661108)

https://support.apple.com/en-us/HT212148(af854a3a-2127-422b-91ae-364da2661108)

https://support.apple.com/en-us/HT212149(af854a3a-2127-422b-91ae-364da2661108)

https://support.apple.com/en-us/HT212152(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-1789(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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