8.6
High
CVE-2026-78501 Improper neutralization of special elements used in a command ('command injection') in Microsoft 365 Copilot's…
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 and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Microsoft 365 Copilot's Business Chat | Versions not published |
Other CVEs of Microsoft 365 Copilot's Business Chat
The 7 CVEs of Microsoft 365 Copilot's Business Chat →
CVE-2026-26129
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an…
7.5
High
CVE-2026-26164
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an…
7.5
High
CVE-2025-59286
Improper neutralization of special elements used in a command ('command injection') in Copilot allows an unauthorized…
9.3
Critical
CVE-2025-59272
Improper neutralization of special elements used in a command ('command injection') in Copilot allows an unauthorized…
9.3
Critical