CVE-2026-66147
Unauthenticated command injection in GMS Dispatcher Service allowing remote code execution.
Is CVE-2026-66147 being exploited?
Not confirmed. CVE-2026-66147 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 2.0% probability of exploitation in the next 30 days.
How severe is CVE-2026-66147?
CVE-2026-66147 is rated Critical with a CVSS score of 9.4. 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-2026-66147?
Not known from our data. No patch reference has been recorded for CVE-2026-66147, 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-2026-66147 affect?
CVE-2026-66147 affects GMS Dispatcher Service, GMS version 9.5.1 and earlier, Servers exposing Dispatcher API. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-66147?
Isolate/disable Dispatcher service from untrusted networks, block access, and apply vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthenticated remote code execution via crafted requests; attacker can execute arbitrary commands, fully compromise host and pivot laterally.
Immediate action required
- affected9.5.1 and earlier versions
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.