CVE-2026-70207 Microsoft Network Policy Server - Remote Code Execution

Microsoft Network Policy Server contains a heap-based buffer overflow caused by improper memory handling, letting authorized attackers execute code remotely, exploit requires network access with authorization.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.66% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Remote Code Execution
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
13 October 2026
Updated
15 October 2026
Weakness
CWE-122

Vendor fix

Update to the latest version of Network Policy Server.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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