---
title: "CVE-2026-85811: Network Policy Server - Use After Free"
description: "Network Policy Server contains a use after free vulnerability allowing unauthorized attackers on adjacent networks to execute arbitrary code remotely, exploit requires network adjacency."
url: https://panop.io/threat-heartbeat/CVE-2026-85811/
---

# CVE-2026-85811 Network Policy Server - Use After Free

Network Policy Server contains a use after free vulnerability allowing unauthorized attackers on adjacent networks to execute arbitrary code remotely, exploit requires network adjacency.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

EPSS

0.36% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-85811)

## Details

Type

Use After Free

Impact

Remote Code Execution

CVSS vector

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

13 October 2026

Updated

15 October 2026

Weakness

[CWE-416](https://cwe.mitre.org/data/definitions/416.html)

## Vendor fix

Update to the latest available version.

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

- [https://nvd.nist.gov/vuln/detail/CVE-2026-85811](https://nvd.nist.gov/vuln/detail/CVE-2026-85811)
- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85811](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85811)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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