What’s Vulnerable › Vulnerabilities

CVE-2025-59286: Copilot Information Disclosure Vulnerability

• Severity: critical (CVSS 9.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-09 · updated 2026-10-08
• Weakness: CWE-77

Description

Improper neutralization of special elements used in a command ('command injection') in Copilot allows an unauthorized attacker to disclose information over a network.

Affected products

• Microsoft 365 Copilot's Business Chat: all versions
• Microsoft 365 Copilot's Business Chat: all versions

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59286

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