CVE-2023-3634
Remote authenticated attacker can abuse test mode in Festo MSE6 to trigger full CIA loss.
Is CVE-2023-3634 being exploited?
Not confirmed. CVE-2023-3634 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 0.64% probability of exploitation in the next 30 days.
How severe is CVE-2023-3634?
CVE-2023-3634 is rated High with a CVSS score of 8.8. 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-2023-3634?
Yes. A fix has been recorded for CVE-2023-3634. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2023-3634 affect?
CVE-2023-3634 affects Festo MSE6 product-family. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2023-3634?
Follow vendor guidance; disable/test-mode exposure; apply mitigations.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote authenticated attacker can abuse undocumented test mode to gain complete confidentiality, integrity, and availability compromise of MSE6 devices.
Immediate action required