Affects widely used Microsoft 365 Copilot; potential privilege escalation could disrupt enterprise networks.
CVE-2026-33102
Open redirect in M365 Copilot may enable privilege escalation.
Is CVE-2026-33102 being exploited?
Not confirmed. CVE-2026-33102 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 0.40% probability of exploitation in the next 30 days.
How severe is CVE-2026-33102?
CVE-2026-33102 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-2026-33102?
Yes. A fix has been recorded for CVE-2026-33102. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-33102 affect?
CVE-2026-33102 affects Microsoft 365 Copilot. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-33102?
Patch when available; restrict redirects and monitor for abuse
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Privilege escalation via open redirect; attacker could gain unauthorized network access or elevated rights.
Patch when possible