High severity · published Aug 18, 2026
CVE-2026-24301
Microsoft Copilot Information Disclosure Vulnerability
7.5
CVSS
1.1%
EPSS
No
On KEV
Description
Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to disclose information over a network.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CW
Copilot Web · Microsoft
All versions, or not specified · source: vendor
CO
Copilot · Microsoft
All versions, or not specified · source: NVD