Out-of-Bounds Read Vulnerability in Apple's Operating Systems
CVE-2026-84597

6.5MEDIUM

Key Information:

Vendor

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

What is CVE-2026-84597?

An out-of-bounds read issue has been identified in Apple’s operating systems, potentially allowing the manipulation of memory due to inadequate input validation. Specifically, processing a maliciously crafted font can lead to the unintended disclosure of process memory, exposing sensitive information. Apple has addressed this vulnerability across its range of products, implementing robust input validation measures to enhance security and protect users.

Affected Version(s)

iOS and iPadOS 0 < 27

macOS 0 < 27

tvOS 0 < 27

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:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.