CVE-2026-12166

CVSS 5.5 MEDIUMEPSS 0.2%

Vexday Risk Score

33Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

Exploit maturity

Proof of concept

Public proof of concept exists, but not yet automated.

CVSS 5.5EPSS 0.2%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

02 Jul 2026Public PoC

02 Jul 2026Published on NVD

Weaponization speed

same dayto first PoC

Weaponized quickly — attackers prioritized this vulnerability. Patch urgently.

Recommendation: Plan a near-term fix — a public PoC already exists.

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

Little Orbit · GameFirst Anti-Cheat

public PoCs found — 1

githubgithub.com/FzRsLLaSheR/CVE-2026-12166_CVE-2026-12167_CVE-2026-12168★ 0

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

https://github.com/FzRsLLaSheR/CVE-2026-12166_CVE-2026-12167_CVE-2026-12168 https://kb.cert.org/vuls/id/639124 https://www.littleorbit.com/