CVE-2023-31315
7.5
HIGH
CVSS 3.1
EPSS 0.03%
Description
Improper validation in a model specific register (MSR) could allow a malicious program with ring0 access to modify SMM configuration while SMI lock is enabled, potentially leading to arbitrary code execution.
How to fix CVE-2023-31315
To remediate CVE-2023-31315, upgrade the affected package to a fixed version below.
- Debian/amd64-microcode—upgrade to 3.20240710.2~deb11u1 or later
Is CVE-2023-31315 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.20240710.2~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H |