CVE-2026-28931
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk20th percentile - higher than 20% of all known CVEs
Summary
A buffer overflow vulnerability in Apple systems. Connecting to a malicious NFS server may lead to kernel memory corruption.
Risk Assessment
An attacker can remotely corrupt kernel memory, potentially leading to system compromise or crash.
Recommendation
Update systems to iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, or watchOS 26.6.
Other vulnerabilities in Apple iOS/iPadOS/macOS/tvOS/watchOS
See all- CVE-2026-28928Critical
A use-after-free vulnerability in Apple systems. An app may cause unexpected system termination.
- CVE-2026-43800Medium
An information disclosure issue was addressed by removing the vulnerable code. An app may be able to access sensitive user data.
- CVE-2026-43743Medium
A race condition was addressed with improved state handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, watchOS 26.6. An app may be able to cause unexpected system termination.
Original NVD description (English source)
A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, watchOS 26.6. Connecting to a malicious NFS server may lead to kernel memory corruption.

