Description
Improper neutralization of special elements used in a command ('command injection') in M365 Copilot allows an unauthorized attacker to disclose information over a network.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
patch
M365 Copilot Information Disclosure Vulnerability
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42824
Scores
CVSS v3
6.5
EPSS
0.0050
EPSS Percentile
38.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-77
Status
published
Products (2)
microsoft/copilot
Microsoft/Microsoft 365 Copilot
-
Published
Jun 04, 2026
Tracked Since
Jun 05, 2026