CVE-2026-88115

8.8High

Published 13 Oct 2026 · NVD status: Undergoing Analysis · AI triage by gemini-3.8-flash

8.8High

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required
Impact: Full C/I/A compromise
Weakness: CWE-125

Impact

Remote attackers can execute code on the host over the network by sending malicious requests to the NFS service, requiring user interaction. No prior authentication or privileges are needed.

Root cause

An out-of-bounds read flaw exists within the Windows Server for NFS service implementation.

Affected systems

Versions not listed — check the vendor advisory.

CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Fix & remediation

Install the relevant Microsoft security update from the MSRC advisory; if unable to patch immediately, disable the Server for NFS service or block incoming NFS traffic (ports 111 and 2049) at the firewall.

shell

$ Stop-Service -Name NfsService -Force; Set-Service -Name NfsService -StartupType Disabled

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD description

Out-of-bounds read in Windows Server for NFS allows an unauthorized attacker to execute code over a network.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-88115

Source: nvd.nist.gov/vuln/detail/CVE-2026-88115