Vulnerability Description
A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious application may be able to cause unexpected system termination or write kernel memory.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 18.7.2 |
| Apple | Iphone Os | < 18.7.2 |
| Apple | Macos | >= 14.0, < 14.8.2 |
| Apple | Tvos | < 26.1 |
| Apple | Visionos | < 26.1 |
| Apple | Watchos | < 26.1 |
Related Weaknesses (CWE)
References
- https://support.apple.com/en-us/125632Release NotesVendor Advisory
- https://support.apple.com/en-us/125633Release NotesVendor Advisory
- https://support.apple.com/en-us/125634Release NotesVendor Advisory
- https://support.apple.com/en-us/125635Release NotesVendor Advisory
- https://support.apple.com/en-us/125636Release NotesVendor Advisory
- https://support.apple.com/en-us/125637Release NotesVendor Advisory
- https://support.apple.com/en-us/125638Release NotesVendor Advisory
- https://support.apple.com/en-us/125639Release NotesVendor Advisory
- https://cloud.google.com/blog/topics/threat-intelligence/darksword-ios-exploit-cTechnical Description
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-US Government Resource
FAQ
What is CVE-2025-43520?
CVE-2025-43520 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS T...
How severe is CVE-2025-43520?
CVE-2025-43520 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-43520?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Ipados, Apple Iphone Os, Apple Macos, Apple Tvos, Apple Visionos.