[NEW] [high] Microsoft 365 Copilot: Vulnerability Allows Privilege Escalation
A remote, anonymous attacker can exploit a vulnerability in Microsoft 365 Copilot to escalate their privileges.
CSIRTS triage
- What
- A vulnerability in Microsoft 365 Copilot allows for privilege escalation.
- Who is affected
- Remote, anonymous users of Microsoft 365 Copilot are affected.
- Urgency
- Remediation is high urgency due to the potential for exploitation and high severity.
- Action
- Apply patches immediately.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2185
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-2026-411060.53% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 41% of all 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.
Recent advisories for Microsoft 365 Copilot
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- criticalCVE-2026-41106: Microsoft 365 Copilot Elevation of Privilege Vulnerabilitymsrc · 2026-07-02
- highCVE-2026-47645: Microsoft 365 Copilot's Business Chat Elevation of Privilege Vulnerabilitymsrc · 2026-06-09
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