What is CVE-2026-65409?

CVE-2026-65409 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 5.5/10. Published 2026-09-14.

How severe is CVE-2026-65409?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Apple iOS And Ipados

CVE-2026-65409

A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. An app may be able to cause a denial of service.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Apple Ios And Ipados
Apple Macos
Apple Tvos
Apple Visionos
Apple Watchos

Weakness classification (CWE)

CWE-843 — Access of Resource Using Incompatible Type (Type Confusion)

References

product-security@apple.com
product-security@apple.com
product-security@apple.com
product-security@apple.com
product-security@apple.com
product-security@apple.com
product-security@apple.com
product-security@apple.com

Frequently asked questions

What is CVE-2026-65409?: CVE-2026-65409 is a medium-severity vulnerability in Apple iOS And Ipados, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 5.5/10. Published 2026-09-14.
How severe is CVE-2026-65409?: Medium severity. CVSS v3 base score is 5.5 out of 10.