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CVE-2026-78501 Microsoft 365 Copilot Business Chat Information Disclosure Vulnerability

🗓️ 17 Sep 2026 22:55:56Reported by microsoftType 
cvelist
 cvelist
🔗 www.cve.org👁 11 Views

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-78501
17 Sep 202622:55
cve
euvd
EUVD
EUVD-2026-82590
18 Sep 202600:31
euvd
mscve
Microsoft CVE
Microsoft 365 Copilot Business Chat Information Disclosure Vulnerability
17 Sep 202614:00
mscve
nvd
NVD
CVE-2026-78501
17 Sep 202623:18
nvd
[
  {
    "vendor": "Microsoft",
    "product": "Microsoft 365 Copilot's Business Chat",
    "versions": [
      {
        "version": "-",
        "status": "affected"
      }
    ]
  }
]

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17 Sep 2026 22:55Current
CVSS 3.17.4
11