Vulnerability · Published Jul 2, 2026 · Assigned by certcc
CVE-2026-12166CVE-2026-12166
Medium 5.5
In plain English
A medium-severity security flaw in GameFirst Anti-Cheat from Little Orbit. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 4% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 95.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
A NULL pointer dereference vulnerability for driver `GFAC_Sys_x64.sys` in Little Orbit GFAC allows a local attacker to cause a denial of service via crafted requests that trigger a system crash.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Little Orbit | GameFirst Anti-Cheat | 0 – through 2025-07-07 |