CVE-2026-41090: CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') in Microsoft Microsoft 365 Copilot for iOS
Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-41090) involves improper neutralization of special elements in commands within Microsoft 365 Copilot for iOS, leading to command injection. An attacker without privileges can remotely exploit this flaw to tamper with the service, impacting confidentiality and integrity. The vulnerability affects the cloud-hosted Microsoft 365 Copilot service on iOS. Microsoft has released an official fix and manages remediation server-side for this cloud service.
Potential Impact
Successful exploitation can lead to unauthorized tampering over the network, compromising confidentiality and integrity of the affected service. Availability impact is not indicated. The vulnerability is remotely exploitable without privileges but requires user interaction.
Mitigation Recommendations
Microsoft has provided an official fix for this vulnerability. As this is a cloud service, Microsoft manages remediation server-side. Users and administrators should ensure their Microsoft 365 Copilot for iOS service is updated according to Microsoft's guidance in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41090.
CVE-2026-41090: CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') in Microsoft Microsoft 365 Copilot for iOS
Description
Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.
CVSS v3.1
Score 9.3critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-41090) involves improper neutralization of special elements in commands within Microsoft 365 Copilot for iOS, leading to command injection. An attacker without privileges can remotely exploit this flaw to tamper with the service, impacting confidentiality and integrity. The vulnerability affects the cloud-hosted Microsoft 365 Copilot service on iOS. Microsoft has released an official fix and manages remediation server-side for this cloud service.
Potential Impact
Successful exploitation can lead to unauthorized tampering over the network, compromising confidentiality and integrity of the affected service. Availability impact is not indicated. The vulnerability is remotely exploitable without privileges but requires user interaction.
Mitigation Recommendations
Microsoft has provided an official fix for this vulnerability. As this is a cloud service, Microsoft manages remediation server-side. Users and administrators should ensure their Microsoft 365 Copilot for iOS service is updated according to Microsoft's guidance in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41090.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-04-16T19:12:36.194Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Is Cloud Service
- true
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41090","vendor":"Microsoft"}]
Threat ID: 6a10d8e4e1370fbb485de03a
Added to database: 05/22/2026, 22:29:56 UTC
Last enriched: 06/22/2026, 14:32:41 UTC
Last updated: 07/07/2026, 10:33:23 UTC
Views: 126
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