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CVE-2026-21521

HIGH CVSS: 7.4 Published: 2026-01-22 Modified: 2026-06-17

Description

Improper neutralization of escape, meta, or control sequences in Copilot allows an unauthorized attacker to disclose information over a network.

Affected Platforms

Microsoft 365 Word Copilot

Weakness Type

CWE-150

References