CVE-2026-19656
Authenticated low-privilege users can execute root OS commands on ScadaLTS server.
Is CVE-2026-19656 being exploited?
Not confirmed. CVE-2026-19656 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-2026-19656?
CVE-2026-19656 is rated Critical with a CVSS score of 9.9. 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-2026-19656?
Not known from our data. No patch reference has been recorded for CVE-2026-19656, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-19656 affect?
CVE-2026-19656 affects ScadaLTS 2.7.8.1 (server). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-19656?
Isolate/stop ScadaLTS, restrict network access, apply vendor patch when released, audit credentials.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated low-privileged users can run arbitrary OS commands as the ScadaLTS server (root), yielding full host compromise and control of SCADA services.
Immediate action required
- affected2.7.8.1
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.