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Vulnerability intelligence

CVE-2026-21520

CWE-77

Exposure of Sensitive Information to an Unauthorized Actor in Copilot Studio allows a unauthenticated attacker to view sensitive information through network attack vector

CVSS Score
7.5
High
EPSS — Exploit Probability
1.4%
Riskier than 70% of all CVEs
Exploitation
Not in CISA KEV
No federal exploitation record
Remediation
Patch available
Vendor fix published
NVD entry Vendor patch PoC / advisory

1 article across 1 outlet · first covered Apr 15, 2026 · latest Apr 15, 2026

Coverage timeline