Microsoft 365 Copilot Business Chat Information Disclosure Vulnerability
view advisory published 2026-09-17
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-78501US | high8.6 | — | ||
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… | ||||
02
references
External citations — patches, advisories, analysis.
- CVE-2026-78501 Microsoft 365 Copilot Business Chat Information Disclosure Vulnerability - CSAFself
- CVE-2026-78501 Microsoft 365 Copilot Business Chat Information Disclosure Vulnerability - HTMLself
- Microsoft Support Lifecycleexternal
- Common Vulnerability Scoring Systemexternal
- Microsoft Exploitability Indexexternal
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