Affects widely-used Microsoft 365 Copilot; open redirect enables network privilege escalation.
CVE-2026-41106
Open redirect in M365 Copilot enables privilege escalation.
Is CVE-2026-41106 being exploited?
Not confirmed. CVE-2026-41106 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.72% probability of exploitation in the next 30 days.
How severe is CVE-2026-41106?
CVE-2026-41106 is rated Critical with a CVSS score of 9.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-41106?
Yes. A fix has been recorded for CVE-2026-41106. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-41106 affect?
CVE-2026-41106 affects Microsoft 365 Copilot. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-41106?
Monitor for activity; patch when available.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Open redirect vulnerability could lead to attacker-controlled redirects enabling privilege escalation and access to internal resources.
Monitor only