{"id":"CVE-2026-12166","state":"PUBLISHED","title":"CVE-2026-12166","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.","publishedAt":"2026-07-02T14:36:04.413Z","updatedAt":"2026-07-02T17:35:36.546Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"certcc","products":["Little Orbit GameFirst Anti-Cheat"],"affected":[{"vendor":"Little Orbit","product":"GameFirst Anti-Cheat","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2025-07-07","versionType":"custom"}]}],"references":["https://www.littleorbit.com/","https://kb.cert.org/vuls/id/639124","https://github.com/FzRsLLaSheR/CVE-2026-12166_CVE-2026-12167_CVE-2026-12168"],"weaknesses":[],"ingestedAt":"2026-10-29T20:10:52.580Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/12xxx/CVE-2026-12166.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-12166","state":"PUBLISHED","datePublished":"2026-07-02T14:36:04.413Z","dateUpdated":"2026-07-02T17:35:36.546Z","assignerShortName":"certcc","assignerOrgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateReserved":"2026-06-12T19:40:24.620Z"},"containers":{"cna":{"title":"CVE-2026-12166","descriptions":[{"lang":"en","value":"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":[{"vendor":"Little Orbit","product":"GameFirst Anti-Cheat","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2025-07-07","versionType":"custom"}]}],"references":[{"url":"https://www.littleorbit.com/"},{"url":"https://kb.cert.org/vuls/id/639124"},{"url":"https://github.com/FzRsLLaSheR/CVE-2026-12166_CVE-2026-12167_CVE-2026-12168"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"certcc","orgId":"37e5125f-f79b-445b-8fad-9564f167944b","dateUpdated":"2026-07-02T15:06:50.751Z"},"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"VINCE 3.0.43","env":"prod","origin":"https://cveawg.mitre.org/api/cve/CVE-2026-12166"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-07-02T17:35:09.610134Z","id":"CVE-2026-12166","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-02T17:35:36.546Z"}}]}}}