CVE-2026-41106: Microsoft 365 Copilot Elevation of Privilege Vulnerability
Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.
CSIRTS triage
- What
- An open redirect vulnerability allows unauthorized privilege elevation.
- Who is affected
- Users of Microsoft 365 Copilot are affected.
- Urgency
- Remediation is critical due to the high severity and potential for exploitation.
- Action
- Apply the latest security updates for Microsoft 365 Copilot.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41106
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-411060.72% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 51% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-41106 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- high[NEW] [high] Microsoft Windows Terminal and 365 Copilot: Multiple Vulnerabilitiescert-bund
- high[NEW] [high] Microsoft 365 Copilot: Vulnerability Allows Privilege Escalationcert-bund
- criticalCVE-2026-41106: Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized att…nvd
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