Vulnerability Intelligence Report
M365 Copilot Information Disclosure Vulnerability
CVE-2026-42824
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
No Active Exploit Signals
CVSS Base Score
6.5
MEDIUM
Exploitability:2.9
Impact Score:3.6
EPSS Probability:0.92%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-77 ↗CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Microsoft 365 Copilot | - (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.922%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2026-04-30T14:51:12 |
| Published | 2026-06-04T22:00:49 |
| Patch Date | 2026-06-04 |
| Last Updated | 2026-09-24T13:45:17 |
Community Chatter & Buzz