CVE-2026-24299: CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') in Microsoft Microsoft 365 Copilot
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-24299) in Microsoft 365 Copilot involves improper neutralization of special elements in commands, classified under CWE-77 (Command Injection). An attacker could exploit this to disclose sensitive information over a network without requiring privileges but with user interaction. The CVSS 3.1 base score is 5.3, reflecting network attack vector, high attack complexity, no privileges required, and user interaction needed. The vulnerability is officially published and a patch is available from Microsoft.
Potential Impact
Successful exploitation of this vulnerability could lead to unauthorized information disclosure over a network. The integrity and availability of the system are not impacted according to the CVSS vector. No known active exploitation has been reported.
Mitigation Recommendations
A patch is available for this vulnerability and should be applied promptly to remediate the issue. Since this is not a cloud service, organizations must ensure their Microsoft 365 Copilot installations are updated with the official fix. No additional mitigation steps are specified.
CVE-2026-24299: CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') in Microsoft Microsoft 365 Copilot
Description
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-24299) in Microsoft 365 Copilot involves improper neutralization of special elements in commands, classified under CWE-77 (Command Injection). An attacker could exploit this to disclose sensitive information over a network without requiring privileges but with user interaction. The CVSS 3.1 base score is 5.3, reflecting network attack vector, high attack complexity, no privileges required, and user interaction needed. The vulnerability is officially published and a patch is available from Microsoft.
Potential Impact
Successful exploitation of this vulnerability could lead to unauthorized information disclosure over a network. The integrity and availability of the system are not impacted according to the CVSS vector. No known active exploitation has been reported.
Mitigation Recommendations
A patch is available for this vulnerability and should be applied promptly to remediate the issue. Since this is not a cloud service, organizations must ensure their Microsoft 365 Copilot installations are updated with the official fix. No additional mitigation steps are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-01-21T21:28:02.969Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69bc698ce32a4fbe5ffae004
Added to database: 3/19/2026, 9:24:28 PM
Last enriched: 4/15/2026, 11:30:54 AM
Last updated: 5/2/2026, 3:29:01 PM
Views: 84
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