Vulnerability Details CVE-2026-21521
Improper neutralization of escape, meta, or control sequences in Copilot allows an unauthorized attacker to disclose information over a network.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 17.3%
CVSS Severity
CVSS v3 Score 7.4
Products affected by CVE-2026-21521
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cpe:2.3:a:microsoft:365_word_copilot:-