CVE-2025-32711: Microsoft 365 Copilot Disclosure Flaw

CVE-2025-32711 Overview

Ai command injection in M365 Copilot allows an unauthorized attacker to disclose information over a network.

Critical Impact

This vulnerability allows unauthorized information disclosure, potentially compromising sensitive data.

Affected Products

• Microsoft 365 Copilot

Discovery Timeline

• Not Available - Vulnerability discovered by Not Available
• Not Available - Responsible disclosure to Microsoft
• Not Available - CVE CVE-2025-32711 assigned
• Not Available - Microsoft releases security patch
• 2025-06-11 - CVE CVE-2025-32711 published to NVD
• 2025-08-04 - Last updated in NVD database

Technical Details for CVE-2025-32711

Vulnerability Analysis

This vulnerability stems from improper handling of command inputs within Microsoft 365 Copilot, leading to a potential injection of unintended commands through network interaction. The vulnerability allows attackers to execute arbitrary commands, leading to unauthorized data disclosure.

Root Cause

Failure to sanitize inputs appropriately within the command processing logic of the Microsoft 365 Copilot platform.

Attack Vector

Exploitation can occur over the network, without the need for privileges or user interaction.

# Example exploitation code (sanitized)
curl -X POST http://target-system/api/cmd \
-d "cmd=`cat /etc/passwd`"

Detection Methods for CVE-2025-32711

Indicators of Compromise

• Unusual network activity
• Unexpected data exfiltration logs
• Unauthorized command executions on the server

Detection Strategies

Utilize network monitoring tools to identify irregular data flows and command execution patterns. Implement anomaly detection systems to flag unexpected behavior within the Microsoft 365 Copilot application.

Monitoring Recommendations

• Correlate logs from network appliances and endpoint protection solutions.
• Use SIEM tools to alert on anomalies related to command executions or data access patterns.

How to Mitigate CVE-2025-32711

Immediate Actions Required

• Implement input validation to sanitize command inputs.
• Restrict network access to the affected service.
• Monitor system logs for suspicious activities.

Patch Information

Refer to the Microsoft Security Advisory for patch details and implement updates as recommended.

Workarounds

If immediate patching is not feasible, consider isolating the affected system and disabling vulnerable services until a fix can be applied.

# Configuration example
iptables -A INPUT -p tcp --dport 80 -j DROP