CVE-2026-70143
HighCVSS 7.8Summary
Heap-based buffer overflow in Windows Network File System. An authorized attacker can exploit this to execute code locally.
Risk Assessment
An attacker with local access could execute arbitrary code in the service context, potentially leading to system takeover.
Recommendation
Install the Windows security updates immediately and restrict NFS service access to trusted networks.
Other vulnerabilities in Windows Network File System
See all- CVE-2026-96209High
An out-of-bounds read vulnerability in Windows Network File System allows an authenticated attacker to elevate privileges locally. The flaw stems from improper reading of data beyond buffer boundaries.
- CVE-2026-69772High
Heap-based buffer overflow in Windows Network File System allows an unauthorized attacker to execute code over a network.
- 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 authorized attacker to execute code locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS