HarborGuard / CVE
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HIGHCVE-2026-21521Published Modified CNA microsoft

CVE-2026-21521: Word Copilot Information Disclosure Vulnerability

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

Metrics

CVSS v3.1
7.4
Severity
HIGH
Fixed in
Affected Products
1
Affected packages
  • Microsoft / Microsoft 365 Word Copilot
    -
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C