CVE-2026-19472
DoS via crafted HTTP PUT to ArmorStart LT embedded web server.
Is CVE-2026-19472 being exploited?
Not confirmed. CVE-2026-19472 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 0.29% probability of exploitation in the next 30 days.
How severe is CVE-2026-19472?
CVE-2026-19472 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-2026-19472?
Yes. A fix has been recorded for CVE-2026-19472. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-19472 affect?
CVE-2026-19472 affects Rockwell ArmorStart LT embedded devices, Devices with ArmorStart LT web server. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-19472?
Apply vendor firmware update; block/inspect HTTP PUT and restrict network access to devices.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote attacker can send a crafted HTTP PUT to crash or hang the device web server, causing denial of service and loss of availability.
Patch when possible
- affectedv2.001 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.