Description
Improper neutralization of special elements used in a command ('command injection') in Microsoft 365 Copilot's Business Chat allows an unauthorized attacker to disclose information over a network.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Microsoft | Microsoft 365 Copilot's Business Chat | - | — |
Advisories 2
- MSRC-CVE-2026-78501 Microsoft 365 Copilot Business Chat Information Disclosure Vulnerability Microsoft Security Response Center · Oct 13, 2026
- WID-SEC-2026-3457 Microsoft Apps (Authenticator und 365 Copilot): Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 17, 2026
References
- Microsoft 365 Copilot Business Chat Information Disclosure Vulnerability vendor-advisory patch