The vulnerability of the Business Chat function in Microsoft 365 Copilot allows attackers to escalate their privileges.
🗓️ 29 Jun 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 6 Views
| Reporter | Title | Published | Views | Family All 10 |
|---|---|---|---|---|
 | CVE-2026-47645 | 19 Jun 202620:29 | – | attackerkb |
 | CVE-2026-47645 | 19 Jun 202622:26 | – | circl |
 | CVE-2026-47645 | 19 Jun 202620:29 | – | cve |
 | CVE-2026-47645 Microsoft 365 Copilot's Business Chat Elevation of Privilege Vulnerability | 19 Jun 202620:29 | – | cvelist |
 | EUVD-2026-38091 | 19 Jun 202620:29 | – | euvd |
 | KLA91113 Multiple vulnerabilities in Microsoft Apps | 18 Jun 202600:00 | – | kaspersky |
 | Microsoft 365 Copilot's Business Chat Elevation of Privilege Vulnerability | 18 Jun 202614:00 | – | mscve |
 | CVE-2026-47645 | 19 Jun 202621:16 | – | nvd |
 | PT-2026-51032 | 19 Jun 202600:00 | – | ptsecurity |
 | CVE-2026-47645 Microsoft 365 Copilot's Business Chat Elevation of Privilege Vulnerability | 19 Jun 202620:29 | – | vulnrichment |
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29 Jun 2026 00:00Current
5.7Medium risk
Vulners AI Score5.7
CVSS 38.8
CVSS 210
EPSS0.00758