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CVE-2026-124194

Medium6.5CISA KEV — exploited in the wild

Microsoft 365 Apps for Enterprise: Microsoft Outlook Spoofing Vulnerabilitytitle from the CVE record

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

CVSS
6.5v3.1
EPSS (exploit probability)
Unavailable
CISA KEV
Listed
SecurityTabs reportupdated 7h agoMicrosoft patches Outlook spoofing flaw already used in attacks

EPSS trendFIRST daily scores, last 90 days

Unavailable

CISA KEV entrycatalogue 2026.11.10

Date added
2026-11-10
Federal due date
2026-11-24
Known ransomware use
Unknown

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.

Verbatim from the CISA KEV catalogue (CISA KEV, fetched 2026-11-11 16:43 UTC). The due date applies to US federal agencies under BOD 22-01.

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

Learn

Why it happened and what stops it

Coverage4 articles

References

Facts sourced from NVD, FIRST EPSS, and CISA KEV. Last synced 2026-11-11 16:43 UTC.

  • CVSS & description: NVD 2.0, fetched 2026-11-10 19:43 UTC
  • EPSS: not yet fetched
  • KEV: CISA KEV, fetched 2026-11-11 16:43 UTC