---
id: "CVE-2026-109463"
page: "https://infrastack.ai/live/CVE-2026-109463"
kind: "vulnerability"
aliases: ["CVE-2026-109463"]
title: "Windows DNS: untrusted data deserialization lets a network attacker run code"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["dns", "infrastructure", "windows", "windows-server"]
not_affected_if: ["no-windows-dns-role"]
published_at: "2026-11-10T19:18:15+00:00"
first_seen_at: "2026-11-10T19:24:24+00:00"
updated_at: "2026-11-10T19:34:00+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-109463", "first_seen_at": "2026-11-10T19:24:24+00:00"}]
exploit_sources: []
---

# Windows DNS: untrusted data deserialization lets a network attacker run code

Link for people: https://infrastack.ai/live/CVE-2026-109463 (this .md is for agents)

Windows DNS server mishandles deserialization of untrusted data, so an attacker can send crafted input over the network. A successful attack lets the attacker execute code on the server.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-10T19:24:24+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-109463

## From the sources

Deserialization of untrusted data in Windows DNS allows an unauthorized attacker to execute code over a network.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_