Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to perform tampering over a network.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Microsoft Microsoft 365 Copilot for iOS affected
Version Status Constraints
- affected —

No data.

No data.

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Vendors Products
Microsoft Subscribe
365 Copilot Ios Subscribe

Project Subscriptions

Vendors Products
Microsoft Subscribe
365 Copilot Ios Subscribe
365 Copilot Ios Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41090 cve-icon
History

Sat, 23 May 2026 00:15:00 +0000

Type Values Removed Values Added
First Time appeared Microsoft 365 Copilot Ios
Vendors & Products Microsoft 365 Copilot Ios

Fri, 22 May 2026 22:30:00 +0000

Type Values Removed Values Added
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.
Title Microsoft Copilot Tampering Vulnerability
First Time appeared Microsoft
Microsoft 365 Copilot Ios
Weaknesses CWE-77
CPEs cpe:2.3:a:microsoft:365_copilot_iOS:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft 365 Copilot Ios
References
Metrics cvssV3_1

{'score': 9.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N/E:U/RL:O/RC:C'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: microsoft

Published:

Updated: 2026-05-22T22:03:09.052Z

Reserved: 2026-04-16T19:12:36.194Z

Link: CVE-2026-41090

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-23T00:00:05Z

Weaknesses