CVE-2023-42917
8.8 · HIGH Actively ExploitedOverview
CVE-2023-42917 is a high-severity vulnerability affecting apple safari. It was published on November 30, 2023 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
A memory corruption vulnerability was addressed with improved locking. This issue is fixed in iOS 17.1.2 and iPadOS 17.1.2, macOS Sonoma 14.1.2, Safari 17.1.2. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited against versions of iOS before iOS 16.7.1.
Remediation
Check the references section for vendor advisories and patches from apple. Update safari to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| apple | safari | >= 0, < 17.1.2 | Affected |
| apple | ipados | >= 0, < 15.8.1 | Affected |
| apple | iphone_os | >= 0, < 15.8.1 | Affected |
| apple | macos | >= 14.0, < 14.1.2 | Affected |
| webkitgtk | webkitgtk\+ | >= 0, < 2.42.3 | Affected |
References
Frequently Asked Questions
What is CVE-2023-42917?
CVE-2023-42917 is a high-severity vulnerability affecting apple safari. It was published on November 30, 2023 and has a CVSS 3.1 base score of 8.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.
How severe is CVE-2023-42917?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2023-42917?
Check the references section for vendor advisories and patches from apple. Update safari to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2023-42917?
CyberStrike's AI-powered security agents can automatically detect CVE-2023-42917 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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