---
id: "CVE-2026-122194"
page: "https://infrastack.ai/live/CVE-2026-122194"
kind: "vulnerability"
aliases: ["CVE-2026-122194"]
title: "Microsoft Defender: null pointer flaw lets a network attacker run code"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["microsoft-defender", "other", "windows"]
not_affected_if: []
published_at: "2026-11-10T19:20:36+00:00"
first_seen_at: "2026-11-10T19:25:11+00:00"
updated_at: "2026-11-10T19:27:43+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-122194", "first_seen_at": "2026-11-10T19:25:11+00:00"}]
exploit_sources: []
---

# Microsoft Defender: null pointer flaw lets a network attacker run code

Link for people: https://infrastack.ai/live/CVE-2026-122194 (this .md is for agents)

A null pointer dereference in Microsoft Defender lets an unauthorized attacker execute code over a network. The sources give a CVSS score of 8.8 and no further detail.

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

## Timeline

- 2026-11-10T19:25:11+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-122194

## From the sources

Null pointer dereference in Microsoft Defender allows an unauthorized attacker to execute code over a network.

---

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