CVE-2026-50517
CRITICAL
NVD
CVSS Score
9.9
Severity
CRITICAL
Published
Jul 24, 2026
Vendor
unknown
Description
Deserialization of untrusted data in M365 Copilot allows an authorized attacker to execute code over a network.
Deserialization of untrusted data in M365 Copilot allows an authorized attacker to execute code over a network.