CVE-2026-85826
HighCVSS 7.0Exploitation Probability (EPSS)
Low risk16th percentile - higher than 16% of all known CVEs
Summary
Out-of-bounds write in Windows Fast FAT Driver allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker could exploit this to gain elevated privileges, potentially leading to system takeover.
Recommendation
Apply Windows updates and restrict access to systems with the vulnerable driver.
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-2026-70277Medium
Out-of-bounds read in Windows Fast FAT Driver allows an unauthorized attacker to disclose information 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 write in Windows Fast FAT Driver allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS