Cyber Threat Intelligence
CTI Academy Sponsor CTI Academy
HIGH · CVSS 7.8 CISA Known Exploited Vulnerability

CVE-2018-19321

GIGABYTE Multiple Products Privilege Escalation Vulnerability

GIGABYTE Multiple Products

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.

CVSS
7.8
HIGH
EPSS
3.7%
30-day exploitation
Ransomware groups
0
recorded exploiting
Published
21 Dec 2018
NVD

Exploitation status

CISA Known Exploited Vulnerabilities

Listed by CISA on 24 October 2022. US federal agencies were required to remediate it by 14 November 2022. CISA records this vulnerability as known to be used in ransomware campaigns.

EPSS — exploitation probability

FIRST puts the probability of exploitation activity in the next 30 days at 3.7%, which is higher than 89.3% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.

CVSS vector

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

Frequently asked questions

Is CVE-2018-19321 being exploited by ransomware groups?

No ransomware group in this database is currently recorded as exploiting CVE-2018-19321.

What does CVE-2018-19321 affect?

CVE-2018-19321 affects GIGABYTE Multiple Products. 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.

How severe is CVE-2018-19321?

CVE-2018-19321 is rated HIGH with a CVSS base score of 7.8. EPSS puts the probability of exploitation in the next 30 days at 3.7%, higher than 89.3% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 14 November 2022.

How should organisations respond to CVE-2018-19321?

Apply the vendor patch for GIGABYTE Multiple Products as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.