MEDIUM 6.5 Microsoft
CVE-2026-42824
M365 Copilot Information Disclosure Vulnerability
Microsoft Security Update 2026-Jun: M365 Copilot Information Disclosure Vulnerability
Affected Products
- Microsoft 365 Copilot
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42824
- https://nvd.nist.gov/vuln/detail/CVE-2026-42824
This medium severity vulnerability with a CVSS score of 6.5 was published on 2026-06-09 via Microsoft. EPSS score: 7.6% (top 6% of all CVEs by exploitation probability). Affected: Microsoft 365 Copilot.
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