CVE-2023-42866
HIGHCVSS 8.8/10EPSS 0.70%
Last modified
CVE-2023-42866 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, tvOS 16.6, Safari 16.6, watchOS 9.6. EPSS estimates a 0.70% chance of exploitation in the next 30 days.
Description
The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, tvOS 16.6, Safari 16.6, watchOS 9.6. Processing web content may lead to arbitrary code execution.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Safari | < 16.6 |
| Apple | Ipados | < 16.6 |
| Apple | Iphone Os | < 16.6 |
| Apple | Macos | < 13.5 |
| Apple | Tvos | < 16.6 |
| Apple | Watchos | < 9.6 |
References
- https://support.apple.com/en-us/HT213841Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213843Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213846Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213847Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213848Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213841Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213843Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213846Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213847Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT213848Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-42866?
The issue was addressed with improved memory handling. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, tvOS 16.6, Safari 16.6, watchOS 9.6. Processing web content may lead to arbitrary code execution.
How severe is CVE-2023-42866?
CVE-2023-42866 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.70% probability of exploitation in the next 30 days.
How do I fix CVE-2023-42866?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2023-42866?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST