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The vulnerability of Microsoft 365 Copilot’s intelligent virtual assistant, related to the lack of measures for cleaning incoming data, allows a perpetrator to disclose protected information.
🗓️ 03 Jun 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 1 Views
| Reporter | Title | Published | Views | Family All 12 |
|---|---|---|---|---|
 | CVE-2026-42827 | 22 May 202622:03 | – | attackerkb |
 | CVE-2026-42827 | 21 May 202621:00 | – | circl |
 | Microsoft 365 Copilot 命令注入漏洞 | 22 May 202600:00 | – | cnnvd |
 | CVE-2026-42827 | 22 May 202622:03 | – | cve |
 | CVE-2026-42827 M365 Copilot Information Disclosure Vulnerability | 22 May 202622:03 | – | cvelist |
 | EUVD-2026-31513 | 22 May 202622:03 | – | euvd |
 | KLA91072 Multiple vulnerabilities in Microsoft Apps | 21 May 202600:00 | – | kaspersky |
 | M365 Copilot Information Disclosure Vulnerability | 21 May 202614:00 | – | mscve |
 | CVE-2026-42827 | 22 May 202623:16 | – | nvd |
 | PT-2026-42848 | 22 May 202600:00 | – | ptsecurity |
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03 Jun 2026 00:00Current
5.7Medium risk
Vulners AI Score5.7
CVSS 36.5
CVSS 27.8
EPSS0.00503