Vulnerability Description
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. Processing a maliciously crafted image may corrupt process memory.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Ipados | < 26.5 |
| Apple | Iphone Os | < 26.5 |
| Apple | Macos | >= 26.0, < 26.5 |
| Apple | Tvos | < 26.5 |
| Apple | Watchos | < 26.5 |
Related Weaknesses (CWE)
References
- https://support.apple.com/en-us/127110Release NotesVendor Advisory
- https://support.apple.com/en-us/127115Release NotesVendor Advisory
- https://support.apple.com/en-us/127118Release NotesVendor Advisory
- https://support.apple.com/en-us/127119Release NotesVendor Advisory
- https://support.apple.com/en-us/128071
- https://support.apple.com/en-us/128072
- https://support.apple.com/en-us/148287
FAQ
What is CVE-2026-43661?
CVE-2026-43661 is a vulnerability with a CVSS score of 7.5 (HIGH). A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS T...
How severe is CVE-2026-43661?
CVE-2026-43661 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-43661?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Ipados, Apple Iphone Os, Apple Macos, Apple Tvos, Apple Watchos.