CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NCVE-2026-124194 Microsoft Outlook Spoofing Vulnerability
Medium (6.5) in Microsoft Office. In CISA KEV since 2026-11-10. EPSS 1.6% estimated probability of exploitation activity in the next 30 days.
On this page
Product ui does not warn user of unsafe actions in Microsoft Office Outlook allows an unauthorized attacker to perform spoofing over a network.
Severity
- EPSS
- 1.6% estimated probability of exploitation activity in the next 30 days; 76th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CISA KEV
- listed 2026-11-10, due 2026-11-24
- CISA's assessment (SSVC)
- Exploitation: active · Automatable: no · Technical impact: partial, assessed 2026-11-09. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
- CWE
- CWE-356 Missing User Interaction for Potentially Unsafe Action
- Published
- Modified
- Assigned by
- microsoft (CNA)
- NVD analysis
- Analyzed
- Record from
- the NVD, synced
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Explain CVE-2026-124194 for an engineer deciding whether to act. Use https://cve.bz/api/public/cves/CVE-2026-124194?via=ask-ai-copy and https://cve.bz/cve/CVE-2026-124194?via=ask-ai-copy as the source of truth: what is affected and which versions fix it, whether it is in CISA KEV, public exploits, and its EPSS (an internet-wide 30-day estimate of exploitation activity, not a forecast for my systems). If they give no fixed versions, use the CVE record https://cveawg.mitre.org/api/cve/CVE-2026-124194 or the vendor advisory, not third-party mirrors. Tell me how to check whether I am affected and how to verify a fix. Cite the sources and say where they are uncertain.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this CVE's id and public links.
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Affected
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Microsoft 365 Apps for Enterprise | from 16.0.1 before https://aka.ms/OfficeSecurityReleases |
| Microsoft Office LTSC 2021 | from 16.0.1 before 16.0.14334.21048 |
| Microsoft Office LTSC 2024 | from 16.0.0 before 16.0.17932.21140 |
Fix and patched versions
GitHub PoC (unverified)
Repositories on GitHub named after this CVE. Nobody has checked them and they are not scanned: some hold a working proof of concept, some nothing useful, and some malware made to look like one. Read the code before you run any of it.
- AmesianX/CVE-2026-124194-poc 8 stars, Python, created
CVE-2026-124194 PoC - Outlook spoofing/forced-authentication NTLM leak (patched 2026-11). Concept proof only, untested against vulnerable O… - Ghost-Bx1/cve-2026-124194-outlook-ntlm-hash-leak 2 stars, Python, created
CVE-2026-124194 - Outlook NTLM Hash Leak (CVSS 6.5)
History
- Listed in CISA KEV
- Analyzed by the NVD
Changes since this site first stored the record. The same for every record: /api/public/changes.