{"schema_version":1,"title":"Microsoft M365 Copilot vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 9 vulnerabilities in Microsoft M365 Copilot: 0 in the last 7 days and 4 in the last 90 days, 4 of them critical and 0 exploited in the wild. The most recent, CVE-2026-85887, was published on 18 September 2026.","url":"https://junglewise.ai/threats/technologies/m365-copilot","json_url":"https://junglewise.ai/threats/technologies/m365-copilot.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/m365-copilot","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":2,"all_time":9,"critical":4,"exploited":0,"last_7_days":0,"last_30_days":2,"last_90_days":4,"last_365_days":9},"latest":[{"cve":"CVE-2026-85887","cvss":7.7,"epss":0.0086,"slug":"cve-2026-85887-microsoft-m365-copilot-incorrect-permission-assignment-in","title":"Microsoft M365 Copilot incorrect permission assignment in critical resource","severity":"high","exploited":false,"published_at":"2026-09-18T00:17:47.92+00:00","url":"https://junglewise.ai/threats/cve-2026-85887-microsoft-m365-copilot-incorrect-permission-assignment-in"},{"cve":"CVE-2026-85885","cvss":9.9,"epss":0.0099,"slug":"cve-2026-85885-improper-neutralization-of-special-elements-used-in-a-command","title":"Microsoft M365 Copilot command injection privilege escalation","severity":"critical","exploited":false,"published_at":"2026-09-17T23:18:53.08+00:00","url":"https://junglewise.ai/threats/cve-2026-85885-improper-neutralization-of-special-elements-used-in-a-command"},{"cve":"CVE-2026-50517","cvss":9.9,"slug":"cve-2026-50517-microsoft-365-copilot-deserialization-of-untrusted-data","title":"Microsoft 365 Copilot deserialization of untrusted data","severity":"critical","exploited":false,"published_at":"2026-07-24T01:17:02.257+00:00","url":"https://junglewise.ai/threats/cve-2026-50517-microsoft-365-copilot-deserialization-of-untrusted-data"},{"cve":"CVE-2026-41106","cvss":9.3,"slug":"cve-2026-41106-microsoft-m365-copilot-open-redirect-privilege-escalation","title":"Microsoft M365 Copilot open redirect privilege escalation","severity":"critical","exploited":false,"published_at":"2026-07-02T23:16:50.867+00:00","url":"https://junglewise.ai/threats/cve-2026-41106-microsoft-m365-copilot-open-redirect-privilege-escalation"},{"cve":"CVE-2026-42895","cvss":6.5,"slug":"cve-2026-42895-microsoft-copilot-command-injection","title":"Microsoft Copilot command injection","severity":"medium","exploited":false,"published_at":"2026-06-19T21:16:43.413+00:00","url":"https://junglewise.ai/threats/cve-2026-42895-microsoft-copilot-command-injection"},{"cve":"CVE-2026-54130","cvss":9.8,"slug":"cve-2026-54130-microsoft-365-copilot-missing-authentication-for-critical","title":"Microsoft 365 Copilot missing authentication for critical function","severity":"critical","exploited":false,"published_at":"2026-06-18T22:16:32.223+00:00","url":"https://junglewise.ai/threats/cve-2026-54130-microsoft-365-copilot-missing-authentication-for-critical"},{"cve":"CVE-2026-42824","cvss":6.5,"slug":"cve-2026-42824-microsoft-m365-copilot-command-injection-information-disclosure","title":"Microsoft M365 Copilot command injection information disclosure","severity":"medium","exploited":false,"published_at":"2026-06-04T23:17:32.077+00:00","url":"https://junglewise.ai/threats/cve-2026-42824-microsoft-m365-copilot-command-injection-information-disclosure"},{"cve":"CVE-2026-42827","cvss":6.5,"epss":0.0006,"slug":"cve-2026-42827-microsoft-m365-copilot-command-injection","title":"Microsoft M365 Copilot command injection","severity":"medium","exploited":false,"published_at":"2026-05-22T23:16:54.657+00:00","url":"https://junglewise.ai/threats/cve-2026-42827-microsoft-m365-copilot-command-injection"},{"cve":"CVE-2026-42893","cvss":7.4,"slug":"cve-2026-42893-microsoft-m365-copilot-command-injection","title":"Microsoft M365 Copilot command injection","severity":"high","exploited":false,"published_at":"2026-05-12T18:17:26.343+00:00","url":"https://junglewise.ai/threats/cve-2026-42893-microsoft-m365-copilot-command-injection"}],"weekly":[{"week":"2026-06-29","critical":1,"exploited":0,"vulnerabilities":1},{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":1,"exploited":0,"vulnerabilities":1},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":1,"exploited":0,"vulnerabilities":2},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0}],"related":[{"name":"Microsoft Windows","slug":"windows-","vulnerabilities":963,"url":"https://junglewise.ai/threats/technologies/windows-"},{"name":"Microsoft Windows 10","slug":"windows-10","vulnerabilities":588,"url":"https://junglewise.ai/threats/technologies/windows-10"},{"name":"Microsoft Windows 11","slug":"windows-11","vulnerabilities":493,"url":"https://junglewise.ai/threats/technologies/windows-11"},{"name":"Microsoft Windows Server 2012","slug":"windows-server-2012","vulnerabilities":293,"url":"https://junglewise.ai/threats/technologies/windows-server-2012"},{"name":"Microsoft Windows Server 2016","slug":"windows-server-2016","vulnerabilities":213,"url":"https://junglewise.ai/threats/technologies/windows-server-2016"},{"name":"Microsoft Windows Server 2019","slug":"windows-server-2019","vulnerabilities":211,"url":"https://junglewise.ai/threats/technologies/windows-server-2019"},{"name":"Microsoft Windows 11 24h2","slug":"windows-11-24h2","vulnerabilities":192,"url":"https://junglewise.ai/threats/technologies/windows-11-24h2"},{"name":"Microsoft Windows Server 2022","slug":"windows-server-2022","vulnerabilities":178,"url":"https://junglewise.ai/threats/technologies/windows-server-2022"},{"name":"Microsoft Edge","slug":"edge-chromium-based","vulnerabilities":167,"url":"https://junglewise.ai/threats/technologies/edge-chromium-based"},{"name":"Microsoft Windows 11 25h2","slug":"windows-11-25h2","vulnerabilities":161,"url":"https://junglewise.ai/threats/technologies/windows-11-25h2"},{"name":"Microsoft Windows 11 Version 26H1","slug":"windows-11-version-26h1","vulnerabilities":135,"url":"https://junglewise.ai/threats/technologies/windows-11-version-26h1"},{"name":"Microsoft Windows Server 2025","slug":"windows-server-2025","vulnerabilities":124,"url":"https://junglewise.ai/threats/technologies/windows-server-2025"}],"technology":{"hub":true,"name":"Microsoft M365 Copilot","slug":"m365-copilot","vendor":{"name":"Microsoft","slug":"microsoft","url":"https://junglewise.ai/threats/vendors/microsoft"},"aliases":[],"category":"application","homepage":"https://www.microsoft.com/en-us/microsoft-365/copilot","description":"An AI-powered productivity tool integrated into Microsoft 365 applications to assist with document creation and data analysis.","url":"https://junglewise.ai/threats/technologies/m365-copilot"},"most_severe":[{"cve":"CVE-2026-85885","cvss":9.9,"epss":0.0099,"slug":"cve-2026-85885-improper-neutralization-of-special-elements-used-in-a-command","title":"Microsoft M365 Copilot command injection privilege escalation","severity":"critical","exploited":false,"published_at":"2026-09-17T23:18:53.08+00:00","url":"https://junglewise.ai/threats/cve-2026-85885-improper-neutralization-of-special-elements-used-in-a-command"},{"cve":"CVE-2026-50517","cvss":9.9,"slug":"cve-2026-50517-microsoft-365-copilot-deserialization-of-untrusted-data","title":"Microsoft 365 Copilot deserialization of untrusted data","severity":"critical","exploited":false,"published_at":"2026-07-24T01:17:02.257+00:00","url":"https://junglewise.ai/threats/cve-2026-50517-microsoft-365-copilot-deserialization-of-untrusted-data"},{"cve":"CVE-2026-54130","cvss":9.8,"slug":"cve-2026-54130-microsoft-365-copilot-missing-authentication-for-critical","title":"Microsoft 365 Copilot missing authentication for critical function","severity":"critical","exploited":false,"published_at":"2026-06-18T22:16:32.223+00:00","url":"https://junglewise.ai/threats/cve-2026-54130-microsoft-365-copilot-missing-authentication-for-critical"},{"cve":"CVE-2026-41106","cvss":9.3,"slug":"cve-2026-41106-microsoft-m365-copilot-open-redirect-privilege-escalation","title":"Microsoft M365 Copilot open redirect privilege escalation","severity":"critical","exploited":false,"published_at":"2026-07-02T23:16:50.867+00:00","url":"https://junglewise.ai/threats/cve-2026-41106-microsoft-m365-copilot-open-redirect-privilege-escalation"},{"cve":"CVE-2026-85887","cvss":7.7,"epss":0.0086,"slug":"cve-2026-85887-microsoft-m365-copilot-incorrect-permission-assignment-in","title":"Microsoft M365 Copilot incorrect permission assignment in critical resource","severity":"high","exploited":false,"published_at":"2026-09-18T00:17:47.92+00:00","url":"https://junglewise.ai/threats/cve-2026-85887-microsoft-m365-copilot-incorrect-permission-assignment-in"},{"cve":"CVE-2026-42893","cvss":7.4,"slug":"cve-2026-42893-microsoft-m365-copilot-command-injection","title":"Microsoft M365 Copilot command injection","severity":"high","exploited":false,"published_at":"2026-05-12T18:17:26.343+00:00","url":"https://junglewise.ai/threats/cve-2026-42893-microsoft-m365-copilot-command-injection"},{"cve":"CVE-2026-42827","cvss":6.5,"epss":0.0006,"slug":"cve-2026-42827-microsoft-m365-copilot-command-injection","title":"Microsoft M365 Copilot command injection","severity":"medium","exploited":false,"published_at":"2026-05-22T23:16:54.657+00:00","url":"https://junglewise.ai/threats/cve-2026-42827-microsoft-m365-copilot-command-injection"},{"cve":"CVE-2026-42895","cvss":6.5,"slug":"cve-2026-42895-microsoft-copilot-command-injection","title":"Microsoft Copilot command injection","severity":"medium","exploited":false,"published_at":"2026-06-19T21:16:43.413+00:00","url":"https://junglewise.ai/threats/cve-2026-42895-microsoft-copilot-command-injection"},{"cve":"CVE-2026-42824","cvss":6.5,"slug":"cve-2026-42824-microsoft-m365-copilot-command-injection-information-disclosure","title":"Microsoft M365 Copilot command injection information disclosure","severity":"medium","exploited":false,"published_at":"2026-06-04T23:17:32.077+00:00","url":"https://junglewise.ai/threats/cve-2026-42824-microsoft-m365-copilot-command-injection-information-disclosure"}],"generated_at":"2026-09-26T11:07:00.153785+00:00"}