CVE-2018-19321
HighExploitedPublic exploitThe GPCIDrv and GDrv low-level drivers in GIGABYTE APP Center v1.05.21 and earlier, AORUS GRAPHICS ENGINE before 1.57, XTREME GAMING ENGINE before 1.26, and OC GURU II v2.08 expose functionality to read and write arbitrary physical memory.
Published Dec 21, 2018 · Updated Aug 13, 2026
Key Facts
Patch immediately- CVE-2018-19321 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Aorus Graphics Engine (Gigabyte), App Center (Gigabyte), Oc Guru Ii (Gigabyte) and 1 more product.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 24, 2022 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 3.7% probability of exploitation in the next 30 days.
- Fixed versions are available, including Aorus Graphics Engine 1.57, App Center 19.0422.1, Xtreme Gaming Engine 1.26.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
3.7%
Higher than 89.5% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2018-19321 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
The GPCIDrv and GDrv low-level drivers in GIGABYTE APP Center v1.05.21 and earlier, AORUS GRAPHICS ENGINE before 1.57, XTREME GAMING ENGINE before 1.26, and OC GURU II v2.08 expose functionality to read and write arbitrary physical memory. This could be leveraged by a local attacker to elevate privileges.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Oct 24, 2022 | Nov 14, 2022 | Known |
| Industry KEV feed | Oct 24, 2022 | Nov 14, 2022 | Known |
| CIRCL KEV | Oct 24, 2022 | Nov 14, 2022 | Known |
| ENISA EUVD | Oct 24, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
4 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Aorus Graphics EngineGigabyte | See advisory | 1.57 |
| App CenterGigabyte | See advisory | 19.0422.1 |
| Oc Guru IiGigabyte | 2.08 | n/a |
| Xtreme Gaming EngineGigabyte | See advisory | 1.26 |
Patched Releases
Aorus Graphics Engine
1.57
App Center
19.0422.1
Xtreme Gaming Engine
1.26
Timeline
Publicly disclosed
Dec 21, 2018
Added to CISA KEV
Oct 24, 2022
Added to Industry KEV feed
Oct 24, 2022
Added to CIRCL KEV
Oct 24, 2022
Added to ENISA EUVD
Oct 24, 2022
Last updated
Aug 13, 2026
References
- advisoryhttps://www.gigabyte.com/Support/Security/1801
- advisory106252
- exploitVulnCheck exploitation report
- exploit20181221 [CORE-2018-0007] - GIGABYTE Driver Elevation of Privilege Vulnerabilities
- exploitVulnCheck exploitation report
FAQ
Common Questions.
The GPCIDrv and GDrv low-level drivers in GIGABYTE APP Center v1.05.21 and earlier, AORUS GRAPHICS ENGINE before 1.57, XTREME GAMING ENGINE before 1.26, and OC GURU II v2.08 expose functionality to read and write arbitrary physical memory.
Affected: Aorus Graphics Engine (Gigabyte); App Center (Gigabyte); Oc Guru Ii (Gigabyte) versions 2.08, among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Oct 24, 2022 and is known to be used in ransomware campaigns.
Yes. It was added on Oct 24, 2022 with a federal remediation due date of Nov 14, 2022.
Public exploit code is available.
Fixed versions are available, including Aorus Graphics Engine 1.57, App Center 19.0422.1, Xtreme Gaming Engine 1.26.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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