CVE-2026-9492
Local authenticated kernel privilege escalation in Gigabyte MBStorage driver.
Is CVE-2026-9492 being exploited?
Not confirmed. CVE-2026-9492 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 0.16% probability of exploitation in the next 30 days.
How severe is CVE-2026-9492?
CVE-2026-9492 is rated High with a CVSS score of 8.5. 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-2026-9492?
Not known from our data. No patch reference has been recorded for CVE-2026-9492, 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-2026-9492 affect?
CVE-2026-9492 affects GIGABYTE Control Center (MBStorage module), MyPortIO_x64.sys driver, Windows x64 systems on Gigabyte motherboards. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-9492?
Apply vendor patch when released; uninstall/disable GCC or MyPortIO_x64.sys; restrict local admin access.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated local attackers can send IOCTLs to read/write physical memory and gain kernel-level privileges, enabling full system compromise.
Patch when possible
- affected<= 26.02.10.01
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.