CVE-2025-67823
Unauthenticated XSS in Mitel MiContact Center via email channel.
Is CVE-2025-67823 being exploited?
Not confirmed. CVE-2025-67823 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 0.34% probability of exploitation in the next 30 days.
How severe is CVE-2025-67823?
CVE-2025-67823 is rated High with a CVSS score of 8.2. 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-2025-67823?
Yes. A fix has been recorded for CVE-2025-67823. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2025-67823 affect?
CVE-2025-67823 affects Mitel MiContact Center Business <= 10.2.0.10, Mitel CX <= 1.1.0.1. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-67823?
Apply vendor patch when released
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attacker can execute scripts in the victim's browser or desktop client via the email channel.
Patch when available