CVE-2026-70277
MediumCVSS 5.5Exploitation Probability (EPSS)
Low risk45th percentile - higher than 45% of all known CVEs
Summary
Out-of-bounds read in Windows Fast FAT Driver allows an unauthorized attacker to disclose information locally.
Risk Assessment
An unauthenticated attacker with local access could read sensitive kernel memory data, potentially facilitating further attacks.
Recommendation
Apply Windows updates containing the fix for the Fast FAT Driver and restrict local access to the system.
Other vulnerabilities in Windows Fast FAT Driver
See all- CVE-2025-24985HighActively exploited
Integer overflow or wraparound in Windows Fast FAT Driver allows an unauthorized attacker to execute code locally.
- CVE-2026-85826High
Out-of-bounds write in Windows Fast FAT Driver allows an authorized attacker to elevate privileges locally.
- CVE-2026-69347High
Heap-based buffer overflow in Windows Fast FAT Driver allows an unauthorized attacker to execute code locally.
- CVE-2026-68878High
Stack-based buffer overflow in Windows Fast FAT Driver allows an authorized attacker to elevate privileges over a network.
Original NVD description (English source)
Out-of-bounds read in Windows Fast FAT Driver allows an unauthorized attacker to disclose information locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS