AI and data stack advisories

Severe, 6 weeks1496Projects326

1496 severe, 6 weeks · 326 projects

MicrosoftCVE-2026-85887

Microsoft 365 Copilot: insecure permissions

Microsoft

CVE-2026-85887 · Published Sep 18, 2026 · updated Sep 28, 2026

High7.7
No fix yet
Microsoft advisory

Incorrect permission assignment for critical resource in M365 Copilot allows an authorized attacker to disclose information over a network.

Affected versions

PackageAffectedFixed in
Microsoft 365 Copilot
Product
all versionsNo fix yet
Details and references
CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Severity from
the vendor (its own CVE record or advisory)
Weakness
CWE-732

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