Apple · Multiple Products
CVE-2024-23222
Apple Multiple Products WebKit Type Confusion Vulnerability
What it is
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.
CISA: Apple iOS, iPadOS, macOS, tvOS, and Safari WebKit contain a type confusion vulnerability that leads to code execution when processing maliciously crafted web content. This vulnerability could impact HTML parsers that use WebKit, including but not limited to Apple Safari and non-Apple products which rely on WebKit for HTML processing.
What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Deadline for US federal agencies: February 13, 2024
- Added to the CISA list
- January 23, 2024
- Published
- January 23, 2024
- Severity
- High 8.8 CVSS 3.1
- Chance of attacks in the next 30 days (EPSS)
- 11% in the top 4.2% of all known vulnerabilities
- Weakness
- CWE-843
- More details
- NVD · CVE.org · CISA
All references (9)
- https://support.apple.com/en-us/118479
- https://support.apple.com/en-us/120304
- https://support.apple.com/en-us/120305
- https://support.apple.com/en-us/120307
- https://support.apple.com/en-us/120309
- https://support.apple.com/en-us/120310
- https://support.apple.com/en-us/120311
- https://support.apple.com/en-us/120339
- https://support.apple.com/en-us/126632
More exploited flaws from Apple
| Added | Vulnerability | Product | Severity | Attack chance |
|---|---|---|---|---|
| Sep 29, 2026 | Out-of-Bounds Write | Multiple Products | High 8.8 | 26% |
| Mar 20, 2026 | Buffer Overflow | Multiple Products | High 8.8 | 1.7% |
| Mar 20, 2026 | Improper Locking | Multiple Products | High 7.8 | 0.4% |
| Mar 20, 2026 | Classic Buffer Overflow | Multiple Products | Medium 5.5 | 0.4% |
| Mar 5, 2026 | Integer Overflow or Wraparound | Multiple Products | High 8.8 | 7.0% |
| Mar 5, 2026 | Use-After-Free | Multiple Products | High 8.8 | 4.0% |
| Feb 12, 2026 | Multiple Buffer Overflow | Multiple Products | High 7.8 | 1.7% |
| Dec 15, 2025 | Use-After-Free WebKit | Multiple Products | High 8.8 | 26% |
Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.