{"id":"CVE-2018-19323","kind":"vulnerability","aliases":["CVE-2018-19323"],"related":[],"title":"The GDrv low-level driver in GIGABYTE APP Center v1.05.21 and earlier, AORUS GRAPHICS ENGINE before 1.57, XTREME…","description":"The GPCIDrv and GDrv low-level drivers in GIGABYTE App Center, AORUS Graphics Engine, XTREME Gaming Engine, and OC GURU expose functionality to read and write arbitrary physical memory. This could be leveraged by a local attacker to elevate privileges.\n\nCISA required action: Apply updates per vendor instructions.","summary":"GIGABYTE's GPCIDrv and GDrv kernel drivers, shipped with App Center, AORUS Graphics Engine, XTREME Gaming Engine and OC GURU, let code read and write arbitrary physical memory. A local user can use this to gain higher privileges, and CISA lists it as exploited in the wild, including ransomware use.","severity":"critical","cvss":9.8,"epss":null,"exploited":true,"exploited_at":"2022-10-24T00:00:00+00:00","products":[{"name":"GIGABYTE Multiple Products","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"gigabyte aorus graphics engine","fixed":["1.57"],"affected":"< 1.57","ecosystem":"vendor"},{"name":"gigabyte app center","fixed":[],"affected":"<= 1.05.21","ecosystem":"vendor"},{"name":"gigabyte oc guru ii","fixed":[],"affected":"= 2.08","ecosystem":"vendor"},{"name":"gigabyte xtreme gaming engine","fixed":["1.26"],"affected":"< 1.26","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["endpoints","exploited","gigabyte","infrastructure","ransomware","windows"],"not_affected_if":["no-gigabyte-software-installed","non-windows"],"how_to_check":"Check whether GPCIDrv.sys or GDrv.sys is present under the Windows drivers directory (C:\\Windows\\System32\\drivers) or loaded via driverquery.\nCheck whether GIGABYTE App Center, AORUS Graphics Engine, XTREME Gaming Engine or OC GURU is installed.","fix":"Apply the update from GIGABYTE per vendor instructions; remove the affected applications if not needed.","status":"open","published_at":"2018-12-21T23:29:00+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:10:29+00:00","updated_at":"2026-10-23T22:29:04+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T21:10:29Z","model":"claude-haiku-5-5","output":{"fix":"Apply the update from GIGABYTE per vendor instructions; remove the affected applications if not needed.\nunknown for specific fixed versions.","reach":"local","impact":"high","summary":"GIGABYTE's GPCIDrv and GDrv kernel drivers, shipped with App Center, AORUS Graphics Engine, XTREME Gaming Engine and OC GURU, let code read and write arbitrary physical memory. A local user can use this to gain higher privileges, and CISA lists it as exploited in the wild, including ransomware use.","category":"infrastructure","who_cares":["windows","gigabyte","endpoints"],"confidence":0.6,"needs_auth":"yes","worst_case":"Local user gains kernel-level control by reading and writing physical memory.","analyst_note":"Confirm affected and fixed driver versions from the GIGABYTE advisory and CISA KEV entry; the sources do not list them.","how_to_check":"Check whether GPCIDrv.sys or GDrv.sys is present under the Windows drivers directory (C:\\Windows\\System32\\drivers) or loaded via driverquery.\nCheck whether GIGABYTE App Center, AORUS Graphics Engine, XTREME Gaming Engine or OC GURU is installed.\nunknown for affected versions.","needs_analyst":true,"not_affected_if":["no-gigabyte-software-installed","non-windows"],"user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"high"},"cost_usd":0.000548,"input_tokens":2859,"output_tokens":524,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-19323':22A,25A '-2018':21A,24A '1.57':18A 'action':143C 'aorus':14A,30A,61B,112C 'app':9A,34A,59B,110C 'appli':144C 'arbitrari':75B,127C 'attack':137C 'center':10A,35A,60B,111C 'cisa':89B,141C 'code':71B 'could':131C 'cve':20A,23A 'driver':6A,56B,107C 'earlier':13A 'elev':139C 'endpoint':44B 'engin':16A,63B,66B,114C,117C 'engine':32A,43A 'exploit':45B,93B 'expos':121C 'function':122C 'gain':85B 'game':65B,116C 'gaming':42A 'gdrv':2A,54B,103C 'gigabyt':8A,46B,50B,109C 'gigabyte':26A,29A,33A,36A,40A 'gpcidrv':52B,101C 'graphic':15A,62B,113C 'graphics':31A 'guru':38A,69B,120C 'higher':86B 'ii':39A 'includ':97B 'infrastructur':47B 'instruct':148C 'kernel':55B 'let':70B 'level':5A,106C 'leverag':133C 'list':90B 'local':79B,136C 'low':4A,105C 'low-level':3A,104C 'memori':77B,129C 'multiple':27A 'oc':37A,68B,119C 'per':146C 'physic':76B,128C 'privileg':87B,140C 'products':28A 'ransomwar':48B,98B 'read':72B,124C 'requir':142C 'ship':57B 'updat':145C 'use':82B,99B 'user':80B 'v1.05.21':11A 'vendor':147C 'wild':96B 'window':49B 'write':74B,126C 'xtreme':19A,41A,64B,115C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2018-12-21T23:29:00+00:00","kev":{"dateAdded":"2022-10-24","dueDate":"2022-11-14","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Known"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2018-19323","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2018-19323","severity":null,"published_at":"2022-10-24T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T10:39:06+00:00","note":null},{"source":"nvd","external_id":"CVE-2018-19323","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-19323","severity":null,"published_at":"2018-12-21T23:29:00+00:00","modified_at":"2026-10-01T21:17:13+00:00","first_seen_at":"2026-10-23T22:29:04+00:00","fetched_at":"2026-10-23T22:29:04+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}