CVE-2026-26136CWE-77

Microsoft Copilot Information Disclosure Vulnerability

Medium · published March 19, 2026

CVSS v3.1
6.5
EPSS
1%
Percentile
61.1
In the wild
Unconfirmed
What it is

Improper neutralization of special elements used in a command ('command injection') in Microsoft Copilot allows an unauthorized attacker to disclose information over a network.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
CVSS v4.0
Not supplied
EPSS
0.00958 · 61.1th percentile
Weakness
CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')
Published
2026-03-19T21:06Z
EPSS history
Timeline
  • 19 MAR 21:06Z
    Microsoft Copilot Information Disclosure Vulnerability
    cvelistv5