CVE-2026-124194: Microsoft Office Outlook Missing User Interaction for Potentially Unsafe Action Vulnerability
Elevated⚠ Actively exploited (CISA KEV)
Elevated
Severity
Active
CISA KEV
No
Ransomware use
Nov 24, 2026
Patch deadline
⚠ Exploited in the wild. CISA added CVE-2026-124194 to its Known Exploited Vulnerabilities catalog on Nov 10, 2026, with a federal patch deadline of Nov 24, 2026 — meaning attackers are actively using it. If you run the affected software, patch it immediately.
Microsoft Office Outlook contains a missing user interaction for potentially unsafe action vulnerability that allows an unauthorized attacker to perform spoofing over a network.
Details
AffectedMicrosoft · Office
WeaknessCWE-356
Added to CISA KEVNov 10, 2026
Federal patch deadlineNov 24, 2026
Known ransomware useNot documented
Frequently asked questions
Is CVE-2026-124194 being actively exploited?
Yes — CISA lists CVE-2026-124194 in its Known Exploited Vulnerabilities (KEV) catalog, so it is confirmed exploited in the wild. Patch it as a priority.
What does CVE-2026-124194 affect?
CVE-2026-124194 affects Microsoft · Office.
How do I fix CVE-2026-124194?
Apply the vendor’s patch for the affected software. The federal patch deadline was Nov 24, 2026. Then check whether your personal data was exposed in any related breach.