What’s Vulnerable › Vulnerabilities

CVE-2026-84597

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-14 · updated 2026-10-26
• Weakness: CWE-125

Description

An out-of-bounds read issue was addressed with improved input validation. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, tvOS 27, visionOS 27, watchOS 27. Processing a maliciously crafted font may result in the disclosure of process memory.

Affected products

• Apple iPadOS: before 27.0 — fixed in 27.0
• Apple Iphone Os: before 27.0 — fixed in 27.0
• Apple macOS: before 27.0 — fixed in 27.0
• Apple tvOS: before 27.0 — fixed in 27.0
• Apple visionOS: before 27.0 — fixed in 27.0
• Apple watchOS: before 27.0 — fixed in 27.0
• Apple iOS and iPadOS: before 27 — fixed in 27
• Apple macOS: before 27 — fixed in 27
• Apple tvOS: before 27 — fixed in 27
• Apple visionOS: before 27 — fixed in 27
• Apple watchOS: before 27 — fixed in 27

How to fix

Upgrade to a fixed version: Apple iPadOS 27.0; Apple Iphone Os 27.0; Apple macOS 27.0; Apple tvOS 27.0; Apple visionOS 27.0; Apple watchOS 27.0; Apple iOS and iPadOS 27; Apple macOS 27; Apple tvOS 27; Apple visionOS 27; Apple watchOS 27. Check the vendor advisory for mitigations.

References

• https://support.apple.com/en-us/149034
• https://support.apple.com/en-us/149035
• https://support.apple.com/en-us/149036
• https://support.apple.com/en-us/149037
• https://support.apple.com/en-us/149038

Get alerted when CVE-2026-84597 or the next vulnerability affects your stack