Vulnerability in Little Orbit Gamefirst Anti-Cheat

CVE-2026-12167

The Minifilter communication port for driver `GFAC_Sys_x64.sys` in Little Orbit GFAC allows a local attacker to access privileged driver functionality via a communication interface that lacks appropriate access restrictions.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (3.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 3.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-12167: held from 0.001 to 0.001.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

References

Frequently asked questions

What is CVE-2026-12167?
CVE-2026-12167 is a high-severity vulnerability in Little Orbit Gamefirst Anti-Cheat, classified under CWE-284 IMPROPER ACCESS CONTROL. CVSS score: 7.8/10. Published 2026-07-02.
How severe is CVE-2026-12167?
High severity. CVSS v3 base score is 7.8 out of 10.