CVE-2026-86991
Low risk· EPSS 18%Exploitation Probability (EPSS)
Low risk18th percentile - higher than 18% of all known CVEs
Summary
A buffer overflow was addressed with improved bounds checking in Apple platforms (iOS, iPadOS, macOS, visionOS). Processing a maliciously crafted file may lead to unexpected process termination.
Risk Assessment
A malicious file could crash a process, potentially disrupting services or causing data loss. In some scenarios, a buffer overflow may be leveraged for further attacks.
Recommendation
Update devices to the listed OS versions (iOS/iPadOS 26.7.2 or 27.2, macOS 27.2/15.8.2/26.7.2, visionOS 27.2). Do not open files from untrusted sources until patches are applied.
Other vulnerabilities in Apple iOS/iPadOS/macOS/visionOS
See all- CVE-2026-20677Critical
A race condition was addressed with improved handling of symbolic links. This issue affects iOS, iPadOS, macOS, and visionOS. A shortcut may be able to bypass sandbox restrictions.
- CVE-2026-86990Low risk· EPSS 17%
An access issue was addressed with improved access restrictions in Apple platforms (iOS, iPadOS, macOS, visionOS). A malicious app may be able to access the camera without user permission.
- CVE-2026-86971Medium
An out-of-bounds write issue was addressed with improved bounds checking in Apple systems. Processing a maliciously crafted image may lead to unexpected app termination.
- CVE-2026-86968Low risk· EPSS 14%
An access issue was addressed with improved access control. A malicious app may be able to access restricted system interfaces or launder launch attribution. The issue affects iOS/iPadOS 27.2, macOS Golden Gate 27.2, and visionOS 27.2.
- CVE-2026-86966Low risk· EPSS 13%
The issue was addressed with improved handling of symlinks. An app may be able to modify protected parts of the file system. The issue affects iOS/iPadOS 26.7.2 and 27, macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, and visionOS 27.
- CVE-2026-86942Low risk· EPSS 15%
An out-of-bounds read in Apple systems was addressed with improved bounds checking. An app may be able to cause a denial-of-service. The issue affects iOS, iPadOS, macOS and visionOS.
- CVE-2026-86925Medium
An authorization issue in Apple systems was addressed with improved state management. The flaw affects iOS 27.2, iPadOS 27.2, macOS Golden Gate 27.2 and visionOS 27.2. An app may be able to access sensitive user data.
- CVE-2026-86920Medium
An authorization issue in Apple systems was addressed with improved state management. The flaw affects iOS/iPadOS 26.7.2, iOS/iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2 and visionOS 27. An app may be able to access sensitive user data.
- CVE-2026-84634Medium
A race condition in Apple systems was addressed with additional validation. The flaw affects iOS/iPadOS 27, macOS Golden Gate 27 and visionOS 27. An app may be able to cause unexpected system termination or write kernel memory.
- CVE-2026-84627High
A buffer overflow in Apple systems was addressed with improved bounds checking. The flaw affects iOS/iPadOS 26.7.2, iOS/iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7.2 and visionOS 27. Processing a maliciously crafted image may lead to heap corruption.
Original NVD description (English source)
A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, visionOS 27.2. Processing a maliciously crafted file may lead to unexpected process termination.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS