CVE-2026-12166
CVE-2026-12166
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
CVE-2026-12166
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.
- Record
CVE-2026-12166- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
EUVDEUVD-2026-41377
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.
- Record
EUVD-2026-41377- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-rp8q-7vcj-j55j
A NULL pointer dereference vulnerability for driver `GFAC_Sys_x64.sys` in Little Orbit GFAC...
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.
- Record
GHSA-rp8q-7vcj-j55j- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-12166- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | FzRsLLaSheR/CVE-2026-12166_CVE-2026-12167_CVE-2026-12168 | 2026-07-02 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-12166 is a medium vulnerability (CVSS 5.5) in Little Orbit Gamefirst Anti-cheat, published July 2, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.15%, the 4th percentile. No source names a fixed version.