Vulnerability Description
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 26.5 and iPadOS 26.5, 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
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 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. Processing a maliciously crafted image ...
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.