MEDIUM · CVSS 6.5
ACTIVELY EXPLOITED
PATCH AVAILABLE
CVE-2026-124194: Microsoft Office Outlook Missing User Interaction for Potentially Unsafe Action Vulnerability
Mentioned in: Microsoft Patch Tuesday, November 2026: Exploited Outlook spoofing flaw
| Vendor | Microsoft |
|---|---|
| Product | Office |
| CVSS score | 6.5 · CVSS 3.1 · MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
| Actively exploited | Yes, according to CISA KEV |
| Added to CISA KEV | 10 Nov 2026 |
| CISA federal deadline | 24 Nov 2026 |
| Weakness (CWE) | CWE-356 |
| NVD published | 10 Nov 2026 |
| NVD last modified | 11 Nov 2026 |
| NVD status | Analyzed |
Affected versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft 365 Apps | – | – |
| Microsoft 365 Apps | – | – |
| Microsoft Office 2021 | – | – |
| Microsoft Office 2021 | – | – |
| Microsoft Office 2024 | – | – |
| Microsoft Office 2024 | – | – |
Required action (CISA's text)
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Description (NVD)
Product ui does not warn user of unsafe actions in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.
Vendor advisories
SOURCES
Other Microsoft flaws
- patchtuesday:2026-11: Vulnerability in Microsoft
- CVE-2026-96951: Microsoft Windows Command Injection Vulnerability
- CVE-2026-65660: Microsoft SharePoint Code Injection Vulnerability
- CVE-2026-85880: Microsoft Windows Heap-Based Buffer Overflow Vulnerability
- CVE-2026-81963: Microsoft Windows Link Following Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 11 Nov 2026.