Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.1 and iPadOS 18.7.1, iOS 26.0.1 and iPadOS 26.0.1, macOS Sequoia 15.7.1, macOS Sonoma 14.8.1, macOS Tahoe 26.0.1, tvOS 26.1, visionOS 26.0.1, watchOS 26.1. Processing a maliciously crafted font may lead to unexpected app termination or corrupt process memory.
Affected products
apple: ipados; apple: iphone os; apple: macos; apple: visionos
References10
- support.apple.com/en-us/125326
- support.apple.com/en-us/125327
- support.apple.com/en-us/125328
- support.apple.com/en-us/125329
- support.apple.com/en-us/125330
- support.apple.com/en-us/125338
- support.apple.com/en-us/125637
- support.apple.com/en-us/125639
- seclists.org/fulldisclosure/2025/Sep/73
- seclists.org/fulldisclosure/2025/Sep/76
Metrics
- CVSS 3.1
-
6.3
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L - EPSS — exploit probability
- 7% percentile: 94 · as of 9 November 2026
- CWE
- CWE-787
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.