CVE-2024-23222 — A type confusion issue was addressed with improved checks

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. Processi

01What is this vulnerability?

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…

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2024-01-23. Ransomware use: Unknown.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-01-23T01:15:11.500
• Last modified: 2026-04-03T11:42:31.020
• Added to CISA KEV: 2024-01-23

09References

• support.apple.com — https://support.apple.com/en-us/118479
• support.apple.com — https://support.apple.com/en-us/120304
• support.apple.com — https://support.apple.com/en-us/120305
• support.apple.com — https://support.apple.com/en-us/120307
• support.apple.com — https://support.apple.com/en-us/120309
• support.apple.com — https://support.apple.com/en-us/120310
• support.apple.com — https://support.apple.com/en-us/120311
• support.apple.com — https://support.apple.com/en-us/120339
• support.apple.com — https://support.apple.com/en-us/126632
• seclists.org — http://seclists.org/fulldisclosure/2024/Feb/6