CVE-2026-69347
HighCVSS 7.4Exploitation Probability (EPSS)
Low risk19th percentile - higher than 19% of all known CVEs
Summary
Heap-based buffer overflow in Windows Fast FAT Driver allows an unauthorized attacker to execute code locally.
Risk Assessment
An unauthorized attacker with local access could execute code, potentially leading to system integrity compromise.
Recommendation
Apply the latest Windows security updates to remediate this vulnerability.
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-2026-70277Medium
Out-of-bounds read in Windows Fast FAT Driver allows an unauthorized attacker to disclose information 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)
Heap-based buffer overflow in Windows Fast FAT Driver allows an unauthorized attacker to execute code locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

