CVE-2026-86870
UnknownSummary
A heap buffer overflow was addressed with improved bounds checking. The vulnerability affects iOS, iPadOS, macOS, visionOS, and watchOS. Processing a maliciously crafted file may lead to unexpected app termination.
Risk Assessment
An attacker could deliver a malicious file that crashes the application, causing a denial of service. This may disrupt user workflows and business operations.
Recommendation
Update Apple devices to iOS 26.7/iPadOS 26.7, iOS 27/iPadOS 27, macOS Golden Gate 27, visionOS 27, or watchOS 27. Avoid opening files from untrusted sources.
Other vulnerabilities in Apple iOS/iPadOS/macOS/visionOS/watchOS
See all- CVE-2026-84625Unknown
A permissions issue was addressed with additional sandbox restrictions. The vulnerability affects iOS, iPadOS, macOS, visionOS, and watchOS. An app may be able to fingerprint the user.
- CVE-2026-65412Unknown
A null pointer dereference vulnerability in Apple systems, fixed with improved input validation. Processing web content may lead to a denial-of-service.
- CVE-2026-65403Unknown
This issue was addressed with improved checks. The vulnerability affects iOS, iPadOS, macOS, visionOS, and watchOS. An app may be able to access sensitive user data.
- CVE-2026-65399Unknown
A file quarantine bypass was addressed with additional checks. The vulnerability affects iOS, iPadOS, macOS, visionOS, and watchOS. An archive may be able to bypass Gatekeeper.
- CVE-2026-64734Medium
A vulnerability in Apple systems, fixed with improved checks. Processing a maliciously crafted contact may leak sensitive data.
Original NVD description (English source)
A heap buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27, watchOS 27. Processing a maliciously crafted file may lead to unexpected app termination.

