Microsoft Office Outlook contains a missing user interaction for potentially unsafe action vulnerability that allows an unauthorized attacker to perform spoofing over a network.
- Vendor / product: Microsoft Office
- Required action: 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.
- Federal due date: 2026-11-24
- Known ransomware campaign use: Unknown
- CWE: CWE-356
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-124194 ; https://nvd.nist.gov/vuln/detail/CVE-2026-124194
Source: CISA Known Exploited Vulnerabilities · 2026-11-10