Strix
26.1K

CVE-2019-7630

HIGHCVSS 7.2/10EPSS 3.08%

Last modified

CVE-2019-7630 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. An issue was discovered in gdrv.sys in Gigabyte APP Center before 19.0227.1. The vulnerable driver exposes a wrmsr instruction via IOCTL 0xC3502580 and does not properly filter the target Model Specific Register (MSR). EPSS estimates a 3.08% chance of exploitation in the next 30 days.

Description

An issue was discovered in gdrv.sys in Gigabyte APP Center before 19.0227.1. The vulnerable driver exposes a wrmsr instruction via IOCTL 0xC3502580 and does not properly filter the target Model Specific Register (MSR). Allowing arbitrary MSR writes can lead to Ring-0 code execution and escalation of privileges.

Metrics

CVSS 3.1
7.2/10

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

EPSS Probability
3.08%

86.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
GigabyteApp Center< 19.0227.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-7630?
An issue was discovered in gdrv.sys in Gigabyte APP Center before 19.0227.1. The vulnerable driver exposes a wrmsr instruction via IOCTL 0xC3502580 and does not properly filter the target Model Specific Register (MSR). Allowing arbitrary MSR writes can lead to Ring-0 code execution and escalation of privileges.
How severe is CVE-2019-7630?
CVE-2019-7630 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 3.08% probability of exploitation in the next 30 days.
How do I fix CVE-2019-7630?
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.

Are you affected by CVE-2019-7630?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST