EUVD-2026-43965
GHSA-m97f-w34x-vq3w
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Command injection prevention
MITRE ATT&CK
1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
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Alert meAnalysisAIv1 – Jul 14, 2026
Remote code execution in the Microsoft 365 Copilot mobile apps for Android and iOS lets an unauthenticated attacker run code across a security boundary by getting a user to interact with crafted content (CWE-77 command injection). The CVSS 9.6 rating reflects network reach, low complexity, no privileges, and a changed scope with high confidentiality, integrity, and availability impact. There is no public exploit identified at time of analysis, but a vendor patch is available and the flaw was self-reported by Microsoft.
Affected VersionsENISA
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Know when Microsoft 365 Copilot For Android gets its next vulnerability
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Primary rating from Vendor (microsoft) · only source for this CVE.
CVSS VectorVendor: microsoft
DescriptionCVE.org
Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to execute code over a network.
Executive ViewAI
Microsoft 365 Copilot mobile apps (Android and iOS) contain a critical remote code execution vulnerability allowing unauthenticated attackers to execute arbitrary commands when users interact with specially crafted content. This directly threatens any employee using Copilot on mobile devices, creating risk of credential theft, data exfiltration, and lateral network access. The widespread distribution of mobile endpoints across the workforce makes this a high-priority threat requiring immediate action.
Within 24 hours, audit your enterprise app store, MDM infrastructure (Intune, MobileIron, etc.), and employee-owned devices to identify all Microsoft 365 Copilot installations and push the patched version through your distribution channel; simultaneously alert users to update manually if using personal devices. Within 7 days, verify through endpoint telemetry and MDM reporting that 100% of known Copilot installations have received the patched build, and analyze audit logs for any suspicious Copilot activity during the exposure window. Within 30 days, enforce a policy blocking outdated Copilot versions from connecting to corporate networks, deploy mobile threat defense scanning to Copilot-equipped devices, and document the remediation timeline for audit compliance.
Apply vendor patch.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
OS command injection occurs when an application passes unsanitized user input directly into system shell commands.
CVE-2026-26133 is an AI command injection vulnerability in Microsoft 365 Copilot and multiple Microsoft mobile/desktop a
Spoofing via improper access control in Microsoft 365 Copilot for Android (versions prior to 16.0.19822.20190) enables a
Exploit-DB