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CVE-2021-1789

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,...

Basic Information

CVE State
PUBLISHED
Reserved Date
December 08, 2020
Published Date
April 02, 2021
Last Updated
January 29, 2025
Vendor
Apple
Product
iOS and iPadOS, macOS
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.
Tags
macos ios cisa

CVSS Scores

CVSS v3.1

8.8 - HIGH

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

CVSS v2.0

6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

SSVC Information

Exploitation
active
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (2022-05-04 00:00:00 UTC) Source

References

https://support.apple.com/en-us/HT212147 https://support.apple.com/en-us/HT212146 https://support.apple.com/en-us/HT212148 https://support.apple.com/en-us/HT212149 https://support.apple.com/en-us/HT212152 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU/ https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ/ https://security.gentoo.org/glsa/202104-03

Known Exploited Vulnerability Information

Source Added Date
CISA 2022-05-04 00:00:00 UTC

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Added to KEVIntel