# CVE-2026-85885

Command injection in M365 Copilot enabling privilege escalation and remote command execution.

- Page: https://www.vulneraibility.com/cve/CVE-2026-85885
- CVSS: 9.9
- Known exploited: not in CISA KEV as of our last sync
- EPSS: 0.72% (percentile 54.0)
- CISA SSVC: exploitation none, automatable no, technical impact total (assessed 2026-09-18)
- Weakness: CWE-77
- Published: 2026-09-17

## Affected

- Microsoft 365 Copilot
- Microsoft 365 tenants using Copilot
- Azure-hosted Copilot services

## Impact

Authorized attacker can perform command injection via Copilot to escalate privileges, execute commands, access data, and control networked resources.

## Action

Immediate action required

## Recommendation

Apply MSRC update immediately; restrict Copilot access, monitor logs, rotate credentials.

## References

- [patch] https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85885

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.