CVE-2026-69772
HighCVSS 8.8Exploitation Probability (EPSS)
Elevated risk55th percentile - higher than 55% of all known CVEs
Summary
Heap-based buffer overflow in Windows Network File System allows an unauthorized attacker to execute code over a network.
Risk Assessment
Potential remote code execution in the network file system, possibly leading to system compromise.
Recommendation
Apply security updates for Windows.
Other vulnerabilities in Windows Network File System
See all- CVE-2026-69372Medium
The vulnerability in Windows Network File System is an out-of-bounds read. It allows an authorized attacker to deny service over a network.
- CVE-2026-68819Medium
Buffer over-read in Windows Network File System allows an unauthorized attacker to deny service over a network.
- CVE-2026-56650High
Heap-based buffer overflow in Windows Network File System allows an authorized attacker to elevate privileges locally.
- CVE-2026-56649Medium
A race condition exists in Windows Network File System when using a shared resource concurrently. An unauthorized attacker can exploit this to execute code remotely over the network.
- CVE-2026-56648High
A time-of-check time-of-use (TOCTOU) race condition in Windows Network File System allows an authorized attacker to elevate privileges over a network.
- CVE-2026-56194High
Heap-based buffer overflow vulnerability in Windows Network File System allows an authorized attacker to elevate privileges over a network.
Original NVD description (English source)
Heap-based buffer overflow in Windows Network File System allows an unauthorized attacker to execute code over a network.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS