Out-of-Bounds Read in Apple iOS, macOS, tvOS, and watchOS Products
CVE-2026-84524

4.3MEDIUM

Key Information:

Vendor

Apple
Status
iOS And iPad OS
Mac OS
TV OS
Visionos
Vendor
CVE Published:
14 September 2026

What is CVE-2026-84524?

An out-of-bounds read vulnerability has been identified in several Apple operating systems, including iOS, iPadOS, macOS, tvOS, and watchOS. This flaw arises from inadequate bounds checking, which can be exploited through a maliciously crafted font file. Successful exploitation may lead to unexpected termination of applications on affected devices, posing a risk to user data and system stability. Users are advised to upgrade to the latest versions of the software to mitigate potential risks.

Affected Version(s)

iOS and iPadOS 0 < 26.7

iOS and iPadOS 0 < 27

macOS 0 < 15.8

References

https://support.apple.com/en-us/149034
https://support.apple.com/en-us/149035
https://support.apple.com/en-us/149036

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.