# Microsoft 365 Copilot vulnerabilities Source: https://junglewise.ai/threats/technologies/365-copilot Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/365-copilot.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 14 vulnerabilities in Microsoft 365 Copilot: 0 in the last 7 days and 3 in the last 90 days, 5 of them critical and 0 exploited in the wild. The most recent, CVE-2026-85881, was published on 13 October 2026. 1 vulnerability in the last four weeks, down 50% on the four before (2). 0 critical against 1. ## Counts - Last 7 days: 0 - Last 30 days: 0 - Last 90 days: 3 - All time: 14 (5 critical, 0 exploited in the wild) ## About Microsoft 365 Copilot AI assistant integrated into Microsoft 365 productivity applications for task automation. ## Latest Microsoft 365 Copilot vulnerabilities - [CVE-2026-85881: Microsoft Graphics Component stack buffer overflow](https://junglewise.ai/threats/cve-2026-85881-stack-based-buffer-overflow-in-microsoft-graphics-component) (high, CVSS 8, published 13 Oct 2026) - [CVE-2026-85885: Microsoft M365 Copilot command injection privilege escalation](https://junglewise.ai/threats/cve-2026-85885-improper-neutralization-of-special-elements-used-in-a-command) (critical, CVSS 9.9, published 17 Sep 2026) - [CVE-2026-78501: Microsoft 365 Copilot Business Chat command injection](https://junglewise.ai/threats/cve-2026-78501-microsoft-365-copilot-business-chat-command-injection) (high, CVSS 7.4, published 17 Sep 2026) - [CVE-2026-48561: Microsoft Copilot command injection in mobile applications](https://junglewise.ai/threats/cve-2026-48561-microsoft-copilot-command-injection-in-mobile-applications) (critical, CVSS 9.6, published 14 Jul 2026) - [CVE-2026-41106: Microsoft M365 Copilot open redirect privilege escalation](https://junglewise.ai/threats/cve-2026-41106-microsoft-m365-copilot-open-redirect-privilege-escalation) (critical, CVSS 9.3, published 2 Jul 2026) - [CVE-2026-42895: Microsoft Copilot command injection](https://junglewise.ai/threats/cve-2026-42895-microsoft-copilot-command-injection) (medium, CVSS 6.5, published 19 Jun 2026) - [CVE-2026-54130: Microsoft 365 Copilot missing authentication for critical function](https://junglewise.ai/threats/cve-2026-54130-microsoft-365-copilot-missing-authentication-for-critical) (critical, CVSS 9.8, published 18 Jun 2026) - [CVE-2026-41100: Microsoft M365 Copilot improper access control spoofing](https://junglewise.ai/threats/cve-2026-41100-microsoft-m365-copilot-improper-access-control-spoofing) (medium, CVSS 4.4, published 12 May 2026) - [CVE-2026-26164: Microsoft M365 Copilot command injection information disclosure](https://junglewise.ai/threats/cve-2026-26164-microsoft-m365-copilot-command-injection-information-disclosure) (high, CVSS 7.5, published 7 May 2026) - [CVE-2026-33102: Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges…](https://junglewise.ai/threats/cve-2026-33102-url-redirection-to-untrusted-site-open-redirect-in-m365-copilot) (critical, CVSS 9.3, published 23 Apr 2026) - [CVE-2026-26134: Microsoft Office integer overflow in Android app](https://junglewise.ai/threats/cve-2026-26134-microsoft-office-integer-overflow-in-android-app) (high, CVSS 7.8, published 10 Mar 2026) - [CVE-2025-59234: Microsoft Office use after free local code execution](https://junglewise.ai/threats/cve-2025-59234-microsoft-office-use-after-free-local-code-execution) (high, CVSS 7.8, published 14 Oct 2025) - [CVE-2025-53732: Microsoft Office heap overflow in Android and Universal versions](https://junglewise.ai/threats/cve-2025-53732-microsoft-office-heap-overflow-in-android-and-universal-versions) (high, CVSS 7.8, published 12 Aug 2025) - [CVE-2025-47167: Microsoft Office type confusion code execution](https://junglewise.ai/threats/cve-2025-47167-microsoft-office-type-confusion-code-execution) (high, CVSS 8.4, published 10 Jun 2025) ## Most severe Microsoft 365 Copilot vulnerabilities - [CVE-2026-85885: Microsoft M365 Copilot command injection privilege escalation](https://junglewise.ai/threats/cve-2026-85885-improper-neutralization-of-special-elements-used-in-a-command) (critical, CVSS 9.9, published 17 Sep 2026) - [CVE-2026-54130: Microsoft 365 Copilot missing authentication for critical function](https://junglewise.ai/threats/cve-2026-54130-microsoft-365-copilot-missing-authentication-for-critical) (critical, CVSS 9.8, published 18 Jun 2026) - [CVE-2026-48561: Microsoft Copilot command injection in mobile applications](https://junglewise.ai/threats/cve-2026-48561-microsoft-copilot-command-injection-in-mobile-applications) (critical, CVSS 9.6, published 14 Jul 2026) - [CVE-2026-33102: Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges…](https://junglewise.ai/threats/cve-2026-33102-url-redirection-to-untrusted-site-open-redirect-in-m365-copilot) (critical, CVSS 9.3, published 23 Apr 2026) - [CVE-2026-41106: Microsoft M365 Copilot open redirect privilege escalation](https://junglewise.ai/threats/cve-2026-41106-microsoft-m365-copilot-open-redirect-privilege-escalation) (critical, CVSS 9.3, published 2 Jul 2026) - [CVE-2025-47167: Microsoft Office type confusion code execution](https://junglewise.ai/threats/cve-2025-47167-microsoft-office-type-confusion-code-execution) (high, CVSS 8.4, published 10 Jun 2025) - [CVE-2026-85881: Microsoft Graphics Component stack buffer overflow](https://junglewise.ai/threats/cve-2026-85881-stack-based-buffer-overflow-in-microsoft-graphics-component) (high, CVSS 8, published 13 Oct 2026) - [CVE-2025-53732: Microsoft Office heap overflow in Android and Universal versions](https://junglewise.ai/threats/cve-2025-53732-microsoft-office-heap-overflow-in-android-and-universal-versions) (high, CVSS 7.8, published 12 Aug 2025) - [CVE-2025-59234: Microsoft Office use after free local code execution](https://junglewise.ai/threats/cve-2025-59234-microsoft-office-use-after-free-local-code-execution) (high, CVSS 7.8, published 14 Oct 2025) - [CVE-2026-26134: Microsoft Office integer overflow in Android app](https://junglewise.ai/threats/cve-2026-26134-microsoft-office-integer-overflow-in-android-app) (high, CVSS 7.8, published 10 Mar 2026) ## Vulnerabilities per week 1 vulnerability in the last four weeks, down 50% on the four before (2). 0 critical against 1. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 2 | 1 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 1 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Other Microsoft technologies - [Microsoft Windows](https://junglewise.ai/threats/technologies/windows): 2,362 vulnerabilities - [Microsoft Windows 10](https://junglewise.ai/threats/technologies/windows-10): 589 vulnerabilities - [Microsoft Windows 11 24h2](https://junglewise.ai/threats/technologies/windows-11-24h2): 565 vulnerabilities - [Microsoft Windows 11 25h2](https://junglewise.ai/threats/technologies/windows-11-25h2): 534 vulnerabilities - [Microsoft Windows Server 2025](https://junglewise.ai/threats/technologies/windows-server-2025): 534 vulnerabilities - [Microsoft Windows Server 2022](https://junglewise.ai/threats/technologies/windows-server-2022): 528 vulnerabilities - [Microsoft Windows Server 2019](https://junglewise.ai/threats/technologies/windows-server-2019): 521 vulnerabilities - [Microsoft Windows Server 2012](https://junglewise.ai/threats/technologies/windows-server-2012): 517 vulnerabilities - [Microsoft Windows 11](https://junglewise.ai/threats/technologies/windows-11): 494 vulnerabilities - [Microsoft Windows Server 2016](https://junglewise.ai/threats/technologies/windows-server-2016): 476 vulnerabilities - [Microsoft Windows 10 1809](https://junglewise.ai/threats/technologies/windows-10-1809): 380 vulnerabilities - [Microsoft Windows 10 21h2](https://junglewise.ai/threats/technologies/windows-10-21h2): 373 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Microsoft 365 Copilot vulnerabilities", https://junglewise.ai/threats/technologies/365-copilot, 13 November 2026.