CVE-2025-9283
ArmorStart LT DoS via EtherNet/IP traffic causing reboot and brief Link State Monitor outage.
Is CVE-2025-9283 being exploited?
Not confirmed. CVE-2025-9283 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 0.55% probability of exploitation in the next 30 days.
How severe is CVE-2025-9283?
CVE-2025-9283 is rated High with a CVSS score of 8.7. 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-2025-9283?
Yes. A fix has been recorded for CVE-2025-9283. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2025-9283 affect?
CVE-2025-9283 affects ArmorStart LT. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-9283?
Monitor traffic; plan firmware update when released; enable rate limits on EtherNet/IP.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
DoS via crafted EtherNet/IP traffic storm; device reboots and Link State Monitor offline for seconds.
Monitor only
- affectedV2.002 and below
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.