---
title: "CVE-2026-69827: DNS Server - Race Condition"
description: "DNS Server contains a race condition caused by concurrent execution using shared resource with improper synchronization, letting unauthorized attackers execute code remotely, exploit requires network access."
url: https://panop.io/threat-heartbeat/CVE-2026-69827/
---

# CVE-2026-69827 DNS Server - Race Condition

DNS Server contains a race condition caused by concurrent execution using shared resource with improper synchronization, letting unauthorized attackers execute code remotely, exploit requires network access.

CVSS base score 8.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.54% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-69827)

## Details

Type

Race Condition

Impact

Remote Code Execution

CVSS vector

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

Published

8 September 2026

Updated

15 October 2026

Weakness

[CWE-362](https://cwe.mitre.org/data/definitions/362.html)

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-69827](https://nvd.nist.gov/vuln/detail/CVE-2026-69827)
- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69827](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-69827)

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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

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