CVE-2018-19321

Name: CVE-2018-19321
Creator: NVD / NIST
Published: 2018-12-21T23:29:00.573+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10Actively ExploitedEPSS 3.67%

Last modified Jun 17, 2026

CVE-2018-19321 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 3.67% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

3.67%

88.2th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Nov 14, 2022.

Affected Software

Vendor	Product	Versions
Gigabyte	Aorus Graphics Engine	< 1.57
Gigabyte	App Center	< 19.0422.1
Gigabyte	Oc Guru Ii	2.08
Gigabyte	Xtreme Gaming Engine	< 1.26

References

http://seclists.org/fulldisclosure/2018/Dec/39Exploit, Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/106252Broken Link, Third Party Advisory, VDB Entry
https://www.gigabyte.com/Support/Security/1801Vendor Advisory
https://www.secureauth.com/labs/advisories/gigabyte-drivers-elevation-privilege-vulnerabilitiesBroken Link, Exploit, Third Party Advisory
http://seclists.org/fulldisclosure/2018/Dec/39Exploit, Mailing List, Third Party Advisory
http://www.securityfocus.com/bid/106252Broken Link, Third Party Advisory, VDB Entry
https://www.gigabyte.com/Support/Security/1801Vendor Advisory
https://www.secureauth.com/labs/advisories/gigabyte-drivers-elevation-privilege-vulnerabilitiesBroken Link, Exploit, Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-19321US Government Resource

Timeline

Published: Dec 21, 2018
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2018-19321?

How severe is CVE-2018-19321?

CVE-2018-19321 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 3.67% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2018-19321?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST