CISA KEV · Known exploitedHigh

CVE-2024-23222

Apple Multiple Products

A type confusion issue was addressed with improved checks. This issue is fixed in Safari 17.3, iOS 15.8.7 and iPadOS 15.8.7, iOS 16.7.5 and iPadOS 16.7.5, iOS 17.3 and iPadOS 17.3, macOS Monterey 12.7.3, macOS Sonoma 14.3, macOS Ventura 13.6.4, tvOS 17.3, visionOS 1.0.2. Processing maliciously crafted web content may lead to arbitrary code execution. This fix associated with the Coruna exploit was shipped in iOS 17.3 on January 22, 2024. This update brings that fix to devices that cannot update to the latest iOS version.

CVSS: 8.8
EPSS: 10.6%
CISA KEV: Listed
Published: 2024.01.23

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability10.6%

Technical severityCVSS 8.8

Vulnerability overview

Affected product and versions

Product: Apple Multiple Products
Affected versions: < 17.3, < 15.8.7, >= 16.0 < 16.7.5, >= 17.0 < 17.3, >= 12.0 < 12.7.3, >= 13.0 < 13.6.4, >= 14.0 < 14.3, < 1.0.2
Fixed versions: 17.3, 15.8.7, 16.7.5, 12.7.3, 13.6.4, 14.3, 1.0.2

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Due date: 2024.02.13

1
Identify
Confirm that Apple Multiple Products and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE: CWE-843
KEV added: 2024.01.23
Ransomware use: 미확인