CVE-2026-71377
Command-argument injection enables remote OS command execution in Hitachi Cosminexus.
Is CVE-2026-71377 being exploited?
Not confirmed. CVE-2026-71377 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 0.31% probability of exploitation in the next 30 days.
How severe is CVE-2026-71377?
CVE-2026-71377 is rated Critical with a CVSS score of 9.8. 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-2026-71377?
Yes. A fix has been recorded for CVE-2026-71377. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-71377 affect?
CVE-2026-71377 affects Hitachi Cosminexus Component Container, Affected versions: multiple ranges prior to 11-70-03, 11-60-03, etc. (see vendor advisory). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-71377?
Apply vendor patches immediately; isolate management interfaces and audit logs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote OS command execution via command-argument injection, allowing arbitrary commands as the service user; may lead to data compromise and lateral movement.
Immediate action required
- affected>= 11-70-01 and < 11-70-03
- affected>= 11-60 and < 11-60-03
- affected>= 11-50 and <= 11-50-03
- affected>= 11-40 and <= 11-40-03
- affected>= 11-30 and <= 11-30-08
- affected>= 11-20 and < 11-20-10
- affected>= 11-10 and <= 11-10-11
- affected>= 11-00 and <= 11-00-12
- affected>= 09-87 and < 09-87-10
- affected>= 09-80 and <= 09-80-04
- affected>= 09-70 and < 09-70-28
- affected>= 09-50 and <= 09-50-22
- affected>= 09-00 and <= 09-00-18
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.