Technology · Microsoft
Microsoft 365 Copilot vulnerabilities
Updated . Rebuilt every hour.
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.
- Last 7 days
- 0
- Last 90 days
- 3
- Critical, all time
- 5
- Exploited in the wild
- 0
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 overflowhighCVSS 8EPSS 0.7%
- CVE-2026-85885: Microsoft M365 Copilot command injection privilege escalationcriticalCVSS 9.9EPSS 1.0%
- CVE-2026-78501: Microsoft 365 Copilot Business Chat command injectionhighCVSS 7.4EPSS 0.9%
- CVE-2026-48561: Microsoft Copilot command injection in mobile applicationscriticalCVSS 9.6
- CVE-2026-41106: Microsoft M365 Copilot open redirect privilege escalationcriticalCVSS 9.3
- CVE-2026-42895: Microsoft Copilot command injectionmediumCVSS 6.5
- CVE-2026-54130: Microsoft 365 Copilot missing authentication for critical functioncriticalCVSS 9.8
- CVE-2026-41100: Microsoft M365 Copilot improper access control spoofingmediumCVSS 4.4EPSS 0.0%
- CVE-2026-26164: Microsoft M365 Copilot command injection information disclosurehighCVSS 7.5EPSS 0.1%
- CVE-2026-33102: Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges…criticalCVSS 9.3EPSS 0.4%
- CVE-2026-26134: Microsoft Office integer overflow in Android apphighCVSS 7.8EPSS 0.1%
- CVE-2025-59234: Microsoft Office use after free local code executionhighCVSS 7.8EPSS 0.1%
- CVE-2025-53732: Microsoft Office heap overflow in Android and Universal versionshighCVSS 7.8EPSS 0.3%
- CVE-2025-47167: Microsoft Office type confusion code executionhighCVSS 8.4EPSS 1.3%
Most severe Microsoft 365 Copilot vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-85885: Microsoft M365 Copilot command injection privilege escalationcriticalCVSS 9.9EPSS 1.0%
- CVE-2026-54130: Microsoft 365 Copilot missing authentication for critical functioncriticalCVSS 9.8
- CVE-2026-48561: Microsoft Copilot command injection in mobile applicationscriticalCVSS 9.6
- CVE-2026-33102: Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges…criticalCVSS 9.3EPSS 0.4%
- CVE-2026-41106: Microsoft M365 Copilot open redirect privilege escalationcriticalCVSS 9.3
- CVE-2025-47167: Microsoft Office type confusion code executionhighCVSS 8.4EPSS 1.3%
- CVE-2026-85881: Microsoft Graphics Component stack buffer overflowhighCVSS 8EPSS 0.7%
- CVE-2025-53732: Microsoft Office heap overflow in Android and Universal versionshighCVSS 7.8EPSS 0.3%
- CVE-2025-59234: Microsoft Office use after free local code executionhighCVSS 7.8EPSS 0.1%
- CVE-2026-26134: Microsoft Office integer overflow in Android apphighCVSS 7.8EPSS 0.1%
Vulnerabilities per week
1 vulnerability in the last four weeks, down 50% on the four before (2). 0 critical against 1. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 2 | 1 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 1 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Microsoft 365 Copilot vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/365-copilot)<a href="https://junglewise.ai/threats/technologies/365-copilot"><img src="https://junglewise.ai/threats/technologies/365-copilot/badge.svg" alt="Microsoft 365 Copilot vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/365-copilot.json, and this page as text at https://junglewise.ai/threats/technologies/365-copilot.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Microsoft 365 Copilot vulnerabilities", https://junglewise.ai/threats/technologies/365-copilot, 13 November 2026.