Actively exploited in the wild
Apple Multiple Products Out-of-Bounds Write Vulnerability
Apple - Multiple Products · Listed in the CISA KEV since 2026-09-29. This indicates confirmed attacks in production environments.
Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
CVE-2026-86950
HighCVSS 8.8KEVExploitation Probability (EPSS)
Very high risk98th percentile - higher than 98% of all known CVEs
Summary
An out-of-bounds write issue in Apple products was addressed with improved bounds checking. Processing a maliciously crafted file may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 27.
Risk Assessment
The flaw can lead to arbitrary code execution when opening a malicious file, and reports indicate active exploitation in targeted attacks. Organizations using affected Apple versions are at risk of device compromise.
Recommendation
Update devices to iOS 18.7.11/iPadOS 18.7.11, iOS 26.7.1/iPadOS 26.7.1, macOS Sequoia 15.8.1, or macOS Tahoe 26.7.1. Prioritize devices of individuals potentially targeted by attacks.
Other vulnerabilities in Apple iOS, iPadOS, macOS
See all- CVE-2026-64762Critical
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.
- CVE-2026-64738Critical
A permissions issue was addressed with additional restrictions. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. A malicious app may be able to break out of its sandbox.
- CVE-2026-64695Critical
The issue was addressed with improved memory handling. The vulnerability affects Apple systems and may allow a remote user to cause unexpected system termination or corrupt kernel memory.
- CVE-2026-43757Critical
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination.
- CVE-2026-28819Medium
An out-of-bounds write issue was addressed with improved bounds checking. The issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, and macOS Tahoe 26.5. An app may be able to execute arbitrary code with kernel privileges.
- CVE-2023-41991MediumActively exploited
A certificate validation issue was addressed. This issue is fixed in macOS Ventura 13.6, iOS 16.7 and iPadOS 16.7. A malicious app may be able to bypass signature validation. Apple is aware of a report that this issue may have been actively exploited against versions of iOS before iOS 16.7.
- CVE-2023-41064HighActively exploited
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 16.6.1 and iPadOS 16.6.1, macOS Monterey 12.6.9, macOS Ventura 13.5.2, iOS 15.7.9 and iPadOS 15.7.9, macOS Big Sur 11.7.10. Processing a maliciously crafted image may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
- CVE-2022-32894HighActively exploited
An out-of-bounds write issue in Apple systems was addressed with improved bounds checking. This affects iOS 15.6.1, iPadOS 15.6.1, and macOS Monterey 12.5.1. An application may execute arbitrary code with kernel privileges.
- CVE-2022-22587CriticalActively exploited
A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 15.3 and iPadOS 15.3, macOS Big Sur 11.6.3, macOS Monterey 12.2. A malicious application may be able to execute arbitrary code with kernel privileges; Apple is aware of a report that this issue may have been actively exploited.
- CVE-2026-86969Low risk· EPSS 14%
An out-of-bounds write was addressed with improved input validation. An app may be able to cause unexpected system termination or corrupt kernel memory. The issue affects iOS/iPadOS 26.7.2 and 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, and macOS Tahoe 26.7.2.
Original NVD description (English source)
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 18.7.11 and iPadOS 18.7.11, iOS 26.7.1 and iPadOS 26.7.1, macOS Sequoia 15.8.1, macOS Tahoe 26.7.1. Processing a maliciously crafted file may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 27.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS