GCD AI RADAR
incidents/AIR-2025-0124

Microsoft 365 Copilot Flaw Allowed Unlogged File Access

Attack on AI2 Disclosed vulnerabilityInfrastructure vulnerabilityData leak

A security vulnerability in Microsoft 365 Copilot permitted users to access and summarize files without generating audit log entries. Microsoft patched the issue following disclosure by a researcher.

Details

type
Attack on AI
An AI model, agent or AI-powered product was the thing exploited, abused or leaked.
categories
  • Infrastructure vulnerabilityprimary
    CVEs and advisories in AI frameworks, inference servers, MCP servers, AI developer tools and hosting stacks.
  • Data leak
    Training data, chat logs, system prompts, model weights or other AI-system data exposed.
owasp llm top 10
mitre atlas
no technique for these categories
Both rows are derived from the type and categories (OWASP 2025 edition, ATLAS release 2026.09), not classified per record. How
severity
2 · Disclosed vulnerability
CVE or vendor advisory, patched or patchable, no confirmed exploitation.
targets
Microsoft
products
Microsoft 365 Copilot
incident date
4 Jul 2025
first reported
4 Jul 2025
origin
AI Incident Database
Derived from the AI Incident Database (CC BY-SA 4.0).
classifier confidence
0.95 · published at or above 0.80; see the methodology
tags
microsoft · copilot · audit-log · vulnerability
record
created 2026-10-18 06:33Z · updated 2026-10-18 06:59Z · json

Sources · 1

  1. 2025-07-04
    Microsoft 365 Copilot Vulnerability Allegedly Allowed File Access Without Audit Log Entry
    AI Incident Database · incidentdatabase.ai/cite/1218

Titles and links belong to their publishers. The summary above is written by GCD AI RADAR in its own words; data is CC BY-SA 4.0.

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