---
title: "CVE-2026-124194: Microsoft Outlook Spoofing Vulnerability | CubePath"
description: "Product ui does not warn user of unsafe actions in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network."
language: en
source: https://cubepath.com/security/cve/CVE-2026-124194
---

# CVE-2026-124194: Microsoft Outlook Spoofing Vulnerability | CubePath

## Description

Product ui does not warn user of unsafe actions in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.

Official description from the CVE record, published by microsoft. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-124194)

## Key data

### CVSS 3.1 Medium 6.5

Score published by microsoft in the CVE record.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:H/RL:O/RC:C

| Metric                 | Value     | What it means                                                                       |
| ---------------------- | --------- | ----------------------------------------------------------------------------------- |
| Attack vector          | Network   | The vulnerable component can be reached over a network, possibly from the Internet. |
| Attack complexity      | Low       | No special conditions are needed. The attack can be repeated at will.               |
| Privileges required    | None      | No account or privileges are needed.                                                |
| User interaction       | Required  | A user has to do something first, such as opening a file or following a link.       |
| Scope                  | Unchanged | The impact stays within the vulnerable component.                                   |
| Confidentiality impact | High      | Serious or total effect on the secrecy of data.                                     |
| Integrity impact       | None      | No effect on the trustworthiness of data.                                           |
| Availability impact    | None      | No effect on availability.                                                          |

CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) .

### CISA Known Exploited Vulnerabilities

This CVE is listed in the CISA KEV catalog.

Name in the catalog

Microsoft Office Outlook Missing User Interaction for Potentially Unsafe Action Vulnerability

Added to the catalog

Nov 10, 2026

Federal due date

Nov 24, 2026

### CISA assessment as of Nov 10, 2026

Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.

Exploitation

Recorded by CISA as active

Automatable

no

Technical impact

partial

### Weakness (CWE)

CWE catalog version 5.0.

CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license.

- [CWE-356](https://cwe.mitre.org/data/definitions/356.html) Missing User Interaction for Potentially Unsafe Action

## Affected products

Products listed in the CVE record, as the CNA published them.

- Microsoft 365 Apps for Enterprise

  - affected: 16.0.1 up to before https://aka.ms/OfficeSecurityReleases
- Microsoft Office LTSC 2021

  - affected: 16.0.1 up to before 16.0.14334.21048
- Microsoft Office LTSC 2024

  - affected: 16.0.0 up to before 16.0.17932.21140

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [Microsoft Outlook Spoofing Vulnerability](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-124194)  (msrc.microsoft.com) vendor-advisory patch

## Timeline

1. ID reserved Nov 6, 2026
2. Added to CISA KEV Nov 10, 2026
3. Record published Nov 10, 2026
4. Record last updated Nov 10, 2026

## Look up another CVE

## About CubePath

CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection.

[Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection)

Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 11, 2026, 00:01 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)