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{"analysis": {"en": {"generated_at": "2026-04-16T07:37:02.279371+00:00", "value": {"mitigation_remediation": ["Apply the latest Microsoft 365 Copilot update or patch as released by Microsoft.", "Restrict Copilot access to authorized users only and enforce least privilege for those accounts.", "Configure network controls to limit the exposure of the Copilot service to trusted networks and monitor for abnormal request patterns."], "summary": {"action": "Immediate Patch", "impact": "Information Disclosure"}, "threat_synthesis": {"affected_systems": "Microsoft 365 Copilot, all supported versions of the service are potentially impacted.", "description_and_impact": "The vulnerability arises from inadequate validation of a specific type of input in Microsoft 365 Copilot, enabling an unprivileged attacker to trigger the transmission of confidential data over a network. This flaw results in a loss of confidentiality, allowing attackers to read information that should remain private. No compromise of integrity or availability is indicated by the current description.", "risk_and_exploitability": "The CVSS score of 9.3 indicates a high severity. However, the EPSS score of less than 1% suggests that exploitation is currently unlikely to occur. The flaw is not listed in the CISA KEV catalog. Attackers would need to send specially crafted input to the Copilot interface or API, which can be performed without prior authentication. While the severity remains high, the low probability of exploitation reduces the immediate threat, but organizations should treat it as a critical risk until a patch is applied."}}}}, "created": "2026-04-16T07:45:06.016029+00:00", "updated": "2026-04-16T07:45:06.016039+00:00", "vendors": []}