The GDrv low-level driver 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 exposes functionality to read and write Machine Specific Registers (MSRs).
Published 2018-12-21 23:29:01
Updated 2020-05-19 13:15:11
Source MITRE
View at NVD,   CVE.org

CVE-2018-19323 is in the CISA Known Exploited Vulnerabilities Catalog

This issue is known to have been leveraged as part of a ransomware campaign.
CISA vulnerability name:
GIGABYTE Multiple Products Privilege Escalation Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA 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.
Notes:
https://www.gigabyte.com/Support/Security/1801
Added on 2022-10-24 Action due date 2022-11-14

Exploit prediction scoring system (EPSS) score for CVE-2018-19323

Probability of exploitation activity in the next 30 days: 18.51%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 96 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2018-19323

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source
9.0
HIGH AV:N/AC:L/Au:N/C:P/I:P/A:C
10.0
8.5
NIST
9.8
CRITICAL CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST

References for CVE-2018-19323

Products affected by CVE-2018-19323

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