CRITICAL 9.3 Microsoft
CVE-2026-24307
M365 Copilot Information Disclosure Vulnerability
Microsoft Security Update 2026-Jan: M365 Copilot Information Disclosure Vulnerability
Affected Products
- Microsoft 365 Copilot
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24307
- https://nvd.nist.gov/vuln/detail/CVE-2026-24307
This critical severity vulnerability with a CVSS score of 9.3 was published on 2026-01-13 via Microsoft. Affected: Microsoft 365 Copilot.
Risk Timeline
CVE Disclosed2026-01-13 · 247 days ago
Remediation Resources
Official Advisory
msrc.microsoft.com/update-guide/vulnerability/CVE-2026-24307NVD / MITRE
nvd.nist.gov/vuln/detail/CVE-2026-24307Related Vulnerabilities
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